Sprinkler turn on

[Irving]

Okay sprinkler experts, I'm bumping up this thread since it had a lot of activity last year.

Situation: I have a whole zone of sprinklers that I'm not going to ever use again. I dug up the line so that I can reroute it to my garden.

Problem: The irrigation line in the ground is a 7/8" black pipe. Everything at Home Depot and Lowe's and even online, that I can find, is for 1/2", 3/4", or 1". I bought a bunch of PVC to build my own above ground sprinkler for my garden (3/4" feed line with 1/2" risers and $1 180 degree shrub sprayers). All I need is some way to go from the 7/8" pipe to 3/4" PVC. Any ideas?

[Wulf202]

Dbc irrigation should be able to get you any parts

Edit. Are you measuring ID or od? Have you actually tried a 1" fitting?

[scratchy]

Mother's Day. My anti siphon valve has a plastic poppet that breaks if it freezes.

[Irving]

Dbc irrigation should be able to get you any parts

Edit. Are you measuring ID or od? Have you actually tried a 1" fitting?

It says 7/8" on the pipe, and I tried about 20 different fittings at Home Depot, for about an hour.

[SideShow Bob]

Try a heat gun, carefully heat up the pipe and try to get it to stretch over a 1 in. fitting. Or heat up the pipe and use a heavy duty hose clamp to clamp it onto. A 3/4 in. Fitting.
You may need a little RTV once it cools to make sure it doesn't leak if you go the smaller fitting route.

[Irving]

The barbs on a 1" press on fitting are about the same size as the outer diameter of the pipe. A 3/4" barb fits on the inside with just a hint of resistance. I like the heat gun idea, but since I'm going to be burying this particular junction again, I'm worried about it a little. My old house has other pipes that are no longer standard sized that I've had to work around, so I'm not exactly surprised and I'm sure my sprinkler system is ancient. Some of the existing fittings (of which I have extras, still in the package) have a copper expander that is pressed into the pipe. I'm wondering if I can find some sort of thin rubber hose that I can stretch over the 3/4" male barbed end, then cram the whole thing into the 7/8" pipe, then seal it all down with a clamp. That is more or less how I solved the issue with an odd sized drum trap under a bathtub. I like the ideas you guys are giving me so far.

[brutal]

The barbs on a 1" press on fitting are about the same size as the outer diameter of the pipe. A 3/4" barb fits on the inside with just a hint of resistance. I like the heat gun idea, but since I'm going to be burying this particular junction again, I'm worried about it a little. My old house has other pipes that are no longer standard sized that I've had to work around, so I'm not exactly surprised and I'm sure my sprinkler system is ancient. Some of the existing fittings (of which I have extras, still in the package) have a copper expander that is pressed into the pipe. I'm wondering if I can find some sort of thin rubber hose that I can stretch over the 3/4" male barbed end, then cram the whole thing into the 7/8" pipe, then seal it all down with a clamp. That is more or less how I solved the issue with an odd sized drum trap under a bathtub. I like the ideas you guys are giving me so far.

It would appear the part you seek exists, somewhere out there.

Sprinkler supply shop should have one.

http://www.rnrsupply.com/p6145.html

[Irving]

Thanks, I did find some 1" pipe in my attic, so I can use that for a tiny run, then convert to 3/4" asap, as I assume that changing from larger to smaller is the best bet.

It is a RainJet pipe I believe. All the new in box, but very old, parts I have that came with the house say RainJet. I should have used the brand in my searches.

[Jer]

Mother's Day. My anti siphon valve has a plastic poppet that breaks if it freezes.

They all should by design. This is to save you from having to replace a more expensive part. I usually get my sprinklers on in February & then keep an eye on the weather. If it's going to freeze overnight I turn off the water supply to it & remove the little drain plug (some have a spigot to open) & let the water drain from the anti-siphon into a bucket. Takes about 15 seconds & allows me to water much more frequently. It's far too dry & windy in Colorado to not water as long as most people tend to. My lawn is usually green March 1st & stays mostly weed free. My neighbors constantly marvel at my lawn & ask for tips. Most think I'm feeding them lines of BS with the basic steps I lay out.

[Dave_L]

I watered my yard by hand yesterday. It sucked. Ive been thinking of firing mine up lately with how dry and warm its been.