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4 votes

Irrigation installation in the yard

Six feet, or any distance, is not necessarily "too far" for a sprinkler. It depends on the sprinkler's throw. Usually sprinklers are designed to overlap significantly. A rule of thumb I ...
jay613's user avatar
  • 40.8k
3 votes

How far ahead of the average last freeze date is it safe to flood buried irrigation pipe?

The black poly parts don't care, they stretch enough that freezing is not an issue for them. Being buried 18" they probably won't freeze anyway. The joints and the metal parts are what fails with ...
Ecnerwal's user avatar
  • 220k
2 votes

What is this valve coming out of the ground?

Welcome to home ownership! We can't say for certain what this valve might control but we can give suggestions as to how you might find out for yourself. You're wise to figure out now, while there's no ...
Greg Hill's user avatar
  • 31.3k
2 votes

Which kind of tubing is best for permanent above-ground in a cold climate?

Standard black polyethylene "well pipe" (or the thinner grades for irrigation-only use) are rated for sunlight exposure. The black coloration is part of that (prevents UV light from getting ...
Ecnerwal's user avatar
  • 220k
1 vote

Will combining two irrigation pipes increase pressure

115 feet of head is almost exactly the 50 PSI you get now, and you're measuring the inlet side of your filter. When the pressure there drops due to the farmer's water use, that's all the pressure you ...
Ecnerwal's user avatar
  • 220k
1 vote

Optimal garden pressure irrigation system

1/4" (6.3mm) tubing has gigantic friction losses. That is, loss of pressure when water is flowing that increases with length. 5.5mm tubing is going to be worse. Given the scale implied by trees ...
Ecnerwal's user avatar
  • 220k
1 vote

When to use PVC cap vs plug

A cap goes onto the exterior of a pipe, whereas a plug goes into an existing fitting (or, sometimes, into the pipe itself). There are situations where one or the other is more convenient for the ...
Greg Hill's user avatar
  • 31.3k
1 vote

Why not drill through concrete basement walls?

You have many questions, but I'll answer the question in your title: Holes invite leaks. Holes invite fractures in the concrete. Concrete is harder than wood, so you always drill through wood given ...
Cheery's user avatar
  • 6,964
1 vote

Practical filter for rain barrel used for irrigation

Some filter setups, eg for swimming pools, let you easily "backwash" the filter, running water backward through it to flush the material it caught to a place where it won't clog things. You ...
keshlam's user avatar
  • 30.4k
1 vote

Practical filter for rain barrel used for irrigation

I'd want to see what could be done with something like a big sand filter (easily backwashed) on the way INTO the tank, without backing up too much and losing too much water. However.... For drip ...
Ecnerwal's user avatar
  • 220k
1 vote

Stainless steel NPT + Brass NPT = not a perfect fit?

Stainless steel is a harder metal than brass. The pro is that it's hardness makes it more corrosion resistant and durable. The con is that it doesn't give like brass when tightening threads. I found ...
cjc's user avatar
  • 101
1 vote

Do I need to winterize black polyethylene sprinkler pipe?

The polyethylene pipe will expand and contract without cracking, however, the connections and fittings will most likely fail. So it is a good idea to drain or blowout the system before winter.
y2knoproblem's user avatar

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