Questions tagged [drainage]

Use this tag when the topic is about controlling water runoff, particularly near structures but also in yards or elsewhere.

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Do I need water traps on my sinks and washing machine drain?

My house has been fitted with water traps in toilet and bathrooms drains which is quite good, but I can see that my kitchen sink, washing machine outlet pipe and regular wash basin don't have water ...
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1 vote
1 answer
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Maintenance of internal roof drain

we have an internal roof drainage system on a 1880 small condo building in New England (MA) that goes to the sewer drain pipe. I just cleaned the outlet for the first time since we moved in. I am ...
1 vote
2 answers
69 views

Can you build a rain diverter with a double T and a toilet plunger?

I'm reading the GrowNYC Rainwater Harvesting Guide and I see in the diagram a "winterizing tee" - a double tee with a reference to a plunger. Are they really just talking about a toilet ...
2 votes
2 answers
52 views

What type of drainage solution for water trapped between my walkway and foundation?

I have a walkway that runs 16 inches parallel to my foundation along the entire side of my house. The walkway elevation is also higher than the top of the foundation where it meets the brick. This ...
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0 votes
2 answers
34 views

How to couple 4" round corrugated downspout to plain round

I'd like to connect a 4" plain round downspout filter to an existing 4" round corrugated downspout. Do I need a specific type of coupling to do that, or will the 4" corrugated fit ...
1 vote
2 answers
78 views

Can I divert my roof stormwater away from my storm drain and to a dirt patch 20 yards away

So I have a townhouse in New York City and I've been getting sewage backup from storm water. I added a sewage backflow prevention valve at the front of the house at the sewer, but the shared storm ...
0 votes
0 answers
45 views

Slip joint nut leaks at PVC-copper joint in sink drain pipe

The 1.5 in PVC-copper slip nut joint (red arrow in the picture below) is leaking (slow drip) from the lower part of the joint. I've tried taken them apart and replace the red rubber gasket, cleaned ...
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1 vote
1 answer
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Can an underground drain pipe cause water seepage into basement where floor and wall meet in the front and side of a house?

We have three water issues on one side of our 1934 house. Our house sits beneath our adjacent neighbor's 2018 cruise ship of a McMansion that runs the full length of our home and backyard four stories ...
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0 votes
1 answer
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how to divert a corrugated round downspout when I can only find non corrugated adapters

I need to add a downspout diverter to my 3" round corrugated downspout. I have a combined sewer and storm sewer system in my basement and don't want it to overflow during heavy fast downpours ...
2 votes
1 answer
260 views

Keeping sand out of a yard drain in a sand pit

tl/dr: I have a large sandy pit where I have to put the entrance for a yard/french drain. I can't remove the sand. I'll be building a deck on top of the sand pit, so I can't just "replace" ...
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1 vote
1 answer
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How to proactively prevent termite infestation

I'm seeing ants boring holes through Tiles and ejecting sand and I'm told ants are first to come then comes the Termite. Outside my building I'm seeing lots of ant colonies where if can lay our feet , ...
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0 votes
4 answers
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Scare off snakes from a weed full land [closed]

I have just inherited an acre of residential land. The land is full of weeds and some trees. It is 2-3 metres below the road that lies near it. It is as I believe infested with snakes. How can I scare ...
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1 answer
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Daylighting an interior french drain

My basement floods about twice a year (maybe 1/2" of water or so) after excessive rainfall or ice melt, and stays flooded for about a day before the water recedes. The basement is half above ...
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0 votes
0 answers
42 views

Should downspouts drain into perforated or solid pipe?

I recently had a contractor re-grade and replace the concrete pad alongside my house, primarily to fix drainage problems. Previously, my downspouts emptied onto cracked concrete where water could seep ...
2 votes
1 answer
92 views

Why there is a wye under a pedestal?

Is there a reason why the builder used a wye under the pedestal with one end capped with a mechanical cap. The P-Trap is located under the floor. I’m replacing the pedestal with a vanity. Do I need ...
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3 votes
2 answers
260 views

French Drain or solid PVC pipe

I live in Southern California, it barely rains here. However, I am working on my yard and just built a retaining wall and was required to use perforated 4" pvc pipe behind it.. Now I need to do ...
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0 votes
1 answer
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Carport Expansion Walls Rotted From Water Damage

We just bought a fixer upper and it seems like some pretty significant issues were missed in the inspection. The inspection mentioned settling in the corner of the living room and rodent activity. ...
2 votes
0 answers
23 views

Can water percolation affect RCC column and footer

There's water percolation around the building due to dry wells which were installed for waste water. I worry whether this water percolation affect the RCC column and footer which is my foundation ? ...
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4 votes
1 answer
145 views

How to protect Building foundation from Dry wells

We have installed 6 dry wells around the building as there was no empty space for drainage water. We did this as per the engineer's advice. Sand texture: It's clay Water table 5 feet Ground water is ...
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1 vote
2 answers
69 views

Home condensation pump emptying into sewage pipe. Is this functionally okay?

I was looking at a house and noticed they had a condensation pump for a hot water heater going directly into one of the houses sewage pipes, which empties into the property's septic tank. See images ...
0 votes
1 answer
50 views

Retrofitting Drain Where Patio Meets Retaining Wall

I just installed a patio 24' x 22' with a retaining wall that is around the perimeter of it, and it looks like water pools too much at the end of the slope (where patio meets retaining wall). There ...
0 votes
0 answers
15 views

Flo-well dry well pipe size

This weekend I’m going to install a flo-well dry well from my basement sump outside into my yard… question is I know the flo wants 4” pipe into it but is it best to run a full 4” the whole way or ...
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5 votes
2 answers
1k views

Elevating portable air conditioner's condensate drain

I'm familiar with window and split air conditioners but new to portable ones. My portable AC has an upper and a lower plugs that can be used to drain the condensation water. Both are two low for ...
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2 votes
2 answers
142 views

I dug a pit to drain my sinks, bathtubs and washing machine water into, the water from the washing machine comes above ground. What have I done wrong?

I dug a 8ft X 6ft pit to drain my sinks, bathtubs and washing machine water into. The ground had right much clay but was able to get past that and into sand. I put 4 ft of rock in the pit, ran a 4&...
-1 votes
2 answers
71 views

How close to align pavers up to a timber retaining wall

I'm wanting to lay concrete pavers on a walkway sloped towards a timber retaining wall. The question I have is how close to the timber retaining wall should I lay the pavers. Laid immediately up to ...
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11 votes
2 answers
3k views

Crack across front of garage floor

I have a crack across the entire front of my garage floor. I believe that the crack was caused by a poor drainage issue that has been corrected. The drainage issue also caused the pavers in front of ...
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2 votes
2 answers
498 views

Why is a shower, sink, washing machine drain line be attached to a buried oil barrel 12' from my house?

I had water coming from the ground from outside my house when using the sink, shower or washing machine. My parents built this house in 1978 and is on a septic system which is only attached to the ...
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0 votes
1 answer
62 views

How to avoid water accumulation around the deck block?

I have decided to build my floating deck but noticed that after a 3 days of rain, I have a pool of water around the deck block (see picture); which led me to believe that water doesn't drain properly. ...
0 votes
2 answers
156 views

How to clean or repair a window well that filled up with water and sand?

Early in spring, when the ground was frozen and there was still a feet of snow in the yard, heavy rain filled my basement window well with water. The ground around my house is very sandy, so the water ...
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1 vote
0 answers
84 views

water drainage and fence building

I am a new homeowner and with the first summer coming up I am looking to do some renovation outside. The first thing I'd like to do is fence off my back yard so my dogs can roam instead of being ...
2 votes
4 answers
323 views

Keeping water away from house

I just bought a place. The basement was waterproofed by the last owner - a french drain installed under the basement floor around the perimeter, leading to a sump pump (done professionally, but no ...
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0 votes
0 answers
95 views

What is going on with my foundation footer?

I have a wet subfloor and been advised to lay a french drain around the house. I have been watching a lot of youtube videos on how to lay ag pipes immediately next to the foundation footer (the red ...
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0 votes
2 answers
102 views

How do I get my deck to drain into the gutter instead of dripping?

I have a metal pergola with slated roof. When it rains moderately the water from the slats falls directly down instead of draining into the gutter. looking for some solution to fix this so all water ...
0 votes
0 answers
64 views

What should I fill my yard with after draining stagnant water?

First time homeowner. I don't know how to develop this area, which use to be unused overgrown space on the property until my dad cut down all the small trees so the area can be used for a garden. He ...
0 votes
1 answer
45 views

How soon should I see moisture levels improve after grading?

An inspector showed me several spots in my basement where I have excessive moisture levels in the drywall along the exterior walls in the basement, and along parts of the exposed concrete block ...
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1 vote
1 answer
52 views

Can I increase the efficiency of an exterior sump system by installing a check valve?

My house only has an exterior sump system for a walkout basement in the central midwest. The sump seems to run through a cycle, pumping the water through the drain pipe (about 6" below the ...
0 votes
0 answers
63 views

Dry Well Against Foundation

I live in a house with a slab foundation. The soil is red clay. One of the downspouts outputs 8 inches above the ground into a small flower bed and walkway. When it rains, a divot is formed into the ...
0 votes
0 answers
88 views

Is it ok to feed these waste water pipes into a gutter channel

I'm in the process of replacing a load of rotten decking. While I have the decking up I decided to fit a gutter channel under the outside tap. The channel is quite deep (shown) and will go against the ...
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1 vote
1 answer
143 views

Old home clay foundation pipe?

My home was built in 1948. It's having a lot of bowing and shearing issues and I need to put steel beams up in the basement. An interior drain system has also been recommended but I'm reluctant - and ...
0 votes
1 answer
92 views

Drainage issue in the yard

Below is drawing of our yard sloping (depicted by arrows along the lines) and what I'd like to do to fix the drainage issue. During the rain, water comes from our neighbors as well as from street ...
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0 votes
0 answers
99 views

Safely detaching 4" HDPE triplewall drainage pipe from a PVC elbow that's attached together with something

I have a French drain behind a retaining wall, which is connected to a 45 degree joint and then a drain pipe (blue arrow). Due to soil erosion, the wall has shifted and that bent the drain pipe. I ...
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0 votes
0 answers
85 views

Sewer smell from floor drain

i have a small drain built into the ground, and once in a while at random times, it smells like sewers. The smell also stops after a random amount of time. It can go some days without smell, and the ...
0 votes
1 answer
129 views

What is this small (~1" x 2") rectangular hole in my basement?

We have some vinyl tile flooring in our basement and the section that contains the washer/dryer had one of the tiles develop a hole due to some kind of depression underneath. I took the time to cut ...
0 votes
1 answer
693 views

How to properly install a washer drain with a floor drain?

I need to install a washing machine drain using a cast iron floor drain. The area is very small, and this is the only drain I can use (I do not own the home so cannot do much about the plumbing). The ...
1 vote
0 answers
103 views

What are purposes of these things that I found buried?

Ive been trying to install some rainwater drainage pipes, so I’ve been digging a lot lately. I’ve uncovered a few things--I hope that they’re either not critical or that I’m not disturbing them. First,...
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0 votes
0 answers
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What yard drainage solution to choose and what do i do with existing perforated pipe?

I have a buddy who's home is on a slab, when it rains water floods an area by his drive way. He installed 3 short 20-50 foot runs of perforated pvc. One in front that drains at bottom of slope. One is ...
0 votes
1 answer
166 views

How do I fix this retaining wall?

I have a broken retaining wall that I'd like to fix up. It's cracked, presumably from water pressure building up behind it. It's rectangular, about 13'x33', and one of the four sides is connected to ...
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0 votes
0 answers
39 views

Water entry into basement in tricky area

I have a tricky water problem. Whenever there is heavy rain, water seeps through cracks in the basement wall underneath the basement window in the picture. The plastic cover seems to help a little but ...
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0 votes
2 answers
69 views

Washing machine drainage leaking - new appliance

I have a new washing machine (there wasn't one there before as I've recently moved in). When the machine is running the water spouts out particularly through a vertical 'vent' hose leaving a small ...
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3 votes
1 answer
237 views

Basement flooding from backwater valve pit groundwater... but why now?

We recently purchased a ~20 year old house with no disclosed history of flooding. Over the winter season, we've seen significant rainfall three times. Each storm, we've seen a substantial flood in our ...

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