Questions tagged [expansion-tank]
Questions relating to expansion tanks, which are generally used to compensate for pressure in plumbing produced by water heaters.
21 questions
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Do I need another expansion tank for the water heater if I have one on the boiler system?
I think I do, but would like some confirmation in my specific case before spending the time and money installing one. Here are some facts:
I have 60 gal gas water heater, which almost always dribbles ...
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Black specks in hot water, brand new house
I moved into a brand new house 4 months ago. I am still getting black specks in hot water. It’s in shower area of all the bathrooms. All are PEX pipes and don’t see any flexible hoses anywhere. I have ...
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Were my expansion tank and check valve installed correctly?
Water company forced me to get installed a dual check valve, secondary shut off and an expansion tank. The installation of the expansion tank doesn't seem correct since it is before the check valve.
I ...
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why does my expansion tank shoot out water when taking off
New to plumbing here, I was trying to do a DIY and add an expansion tank to my water heater. I noticed it was dripping from the fitting, so I tried to take it off to apply more tapes and pipe dope, ...
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Proper order of additional components?
I have this heat pump unit that has some features but unfortunately, some stuff in it is weak so the manufacturer's guide suggests I boost it a bit from the outside. Therefore I would like to add ...
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Expansion tank vs. safety valve position
I have this safety valve that comes with a non-return valve in it:
I'm wondering if the expansion tank should be installed in x1 or x2 point:
Also, should I get a safety valve with max. 8 bar, or ...
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Expansion tank position within thermo-hydraulic separator system
Where should the expansion tank be installed? On the primary side or on the secondary side? Both sides perhaps?
x1 ?
x2 ?
x3 ?
or x4 ?
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Should expansion tank be installed before or after water softener?
I'm installing a water softener and expansion tank similar to the picture below. Does the expansion tank get installed before the water softener, or immediately before the HWT?
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PSI charge for an already installed expansion tank
I have a five gallon expansion tank installed for a 75 gallon water heater. After about a year, starting to get some 'singing'in the system.
Wondering if there is a way to check and top off pressure ...
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Can a new expansion tank cause extreme water consumption?
We recently sold our home and per inspector had a licensed plumber install a new expansion tank. We moved out, but continued to visit the home to clean, so we know there is no water on and no leaking ...
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Why is my boiler leaking?
We noticed our boiler leaking today. It seems it is coming from the overflow of our expansion tank. Can anyone offer any assistance as to why this could be happening?
To our knowledge, this has not ...
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Can expansion tank be connected to second TP inlet on top of water heater?
This gas water heater (American Standard GSN50T1) has a working T/P-relief valve installed on its side. I also found this unused inlet on top of the heater, under a plastic cover, just above a stamp ...
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How can I stop a leak in a shower valve?
My shower valve leaks. It started leaking a couple of weeks ago and I replaced the cartridge. I had to re-use some of the old parts because the new ones wouldn't fit. The valve stopped leaking for a ...
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Expansion Tank on Water Heater horizontal installed
When I check the pressure on my horizontally installed expansion tank, I get a little water coming out as I depress the pressure gauge on the valve. The valve is on the lower side of the tank. Is that ...
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How do I test and maintain the expansion tank on my boiler?
I don’t know what maintenance or adjustments are possible on an expansion tank. I understand from the answer to this question that it needs to be "pre charged" to accommodate the range of ...
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How can I increase boiler system pressure so bleeding 3rd floor radiators is easier?
It is very difficult to bleed air out of my 3rd floor radiators. I need at least 23 pounds according to the gage on the boiler, and ideally closer to 30 (but not too close!), to speed things up. The ...
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How do a boiler’s autofill valve and expansion tank work together as a system?
How do the expansion tank and automatic fill / reducing valve work together in a hot water heating system? It seems to me that if the expansion tank is charged too high the autofill valve will never ...
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Trying to plan a pressure-tank + air compressor for raising home water pressure
In my place, the city water system provides the water at pressure of between 2BAR - 4BAR. We live on the 3rd floor, with water boiler on the roof (5th floor) so the hot water are going up to the roof ...
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What is the Correct Hot Water Expansion Tank Pressure
What is the correct pressure for the pre-charge on a domestic hot water expansion tank? I have read in several places that it should be pressurized for the incoming water pressure. This would ...
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Correct installation of a water expansion tank?
I am moving my 80 gal water heater to a better location in my basement to give shorter hot water plumbing runs and be next to my furnace.
The old expansion tank was installed in "series" ...
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After installing expansion tank, massive buildup of pressure then a trickle?
I am completely stumped. You guys helped me out a lot with my previous question here: What could be causing water to drip from the relief valve of my new gas water heater?
Turns out the expansion ...
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