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Serenity now! |
I'm looking to blow out the sprinklers in our new house. I never had to do this in our last house, so I'm new to the process. Does this look like the blow out port, or do I keep looking?  Ladies and gentlemen, take my advice - pull down your pants and slide on the ice. ʘ ͜ʖ ʘ | ||
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| Banned for showing his ass |
I have done my daughter's sprinkler blowout for years in far eastern Washington. Though does not look exactly like this, the garden hose screw on and the valve handle suggests that this is a blowout port. Make sure to have an air compressor with high volume and do not go over 50 psi. Volume is important, pancake compressors do not have the volume needed ... have at least 20 to 25 gal. My daughter's house had a garden hose connection to blow out that was a pain in the ass to mate with my compressor. After the first year I swapped out the garden hose connector with a quick connect for my air hose. Much easier to use. | |||
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Member |
Only 1 pipe in your picture. Typically, you have 4-6 zones with controls for each zone. You need to keep tracing that pipe until you find the controller box. | |||
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| Serenity now! |
It's kind of a weird setup at this house. Before this box there's a shut-off valve in a box, and that pipe leads to this box, and this box leads to other boxes with the valves in them. Ladies and gentlemen, take my advice - pull down your pants and slide on the ice. ʘ ͜ʖ ʘ | |||
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| Green grass and high tides  |
No, that assm. is a filter housing. The valve you are looking at is to purge or flush the filter. Once you turn the system off you will want to unscrew the big housing off, remove the filter and fully clean. Your blow out port should be near where you turn the main supply valve off that feeds water in to the irrigation system. To blow out a typical system you will hook your air to the main line. Then go to the controller and manually activate each zone to blow it out. There are very different devices used. A quick coupling valve is used by higher end installers. It can be just a riser with a pvc cap on it or other things too. But this is not it. "Practice like you want to play in the game" | |||
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| Master of one hand pistol shooting  |
In a city park setting we use a low point drain. The main is 3" SIGnature NRA Benefactor CMP Pistol Distinguished | |||
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Member |
Do you have a pressure vacuum breaker on the main line similar to this?  | |||
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| Green grass and high tides |
Probably not, those are very prone to freezing so if he is blowing out the system to winterize I doubt he would have a pvb. If he has a bfp it would mostly likely be a dcva double check valve assm. I know some do it, but it is really not recommended to winterize by hooking up to a bfp to do it. Imho. "Practice like you want to play in the game" | |||
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| Banned for showing his ass |
I was wondering what that large housing was below the garden hose connection and shutoff. How does that housing work as a filter ? How does the input/output work for the filter ? One thing I learned from my daughter's system and having a sprinkler company came out to replace three of the six valve assemblies is that there are many goofy ways some systems are setup. | |||
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| Staring back from the abyss  |
This. It should be upstream from your manifold(s) and near the main valve. I built my own and just have a 1/2in PVC piece sticking up that I screw a compressor fitting on to. Shut the main valve to the system, pressurize the system (< 50PSI), then turn each valve on manually and one at a time at the manifold going from near to far zone-wise. ________________________________________________________ "Great danger lies in the notion that we can reason with evil." Doug Patton. | |||
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| Banned for showing his ass |
Exactly what I did, and do, too ... | |||
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| Green grass and high tides |
inside of the housing is a nylon filter element. it has orings on each end. It just press into a seat. Usually they are installed to where the housing you see in his pix is turned a 180 degrees from that one. So that the element is point down, not up. "Practice like you want to play in the game" | |||
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| Banned for showing his ass |
Does the water then enter the filter housing from below, make a u-turn, then exit out the same way it came in ? Wonder if works in a similar fashion as the water filter in our fridge. | |||
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| Member |
What I posted above is typically what we have in MN (at least in my neighborhood), as long as we drain and blow the system out before the really hard freeze we have no issues. I screw in an NTP fitting where the little black plastic covers are, open the check valves and hook up with my 60 gal air compressor making sure I don't exceed 50 PSI. | |||
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| Green grass and high tides |
like this one. It is an inline unit with the big housing containing the element and area to catch filter debris https://www.grainger.com/produ...ALw_wcB&gclsrc=aw.ds with compressed air in irr. Less psi and a bit longer beats higher air pressure for less time, every time. If you do not know what you are dealing with and doing this can be a very dangerous venture. So be very careful and cautious. "Practice like you want to play in the game" | |||
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| Green grass and high tides |
We used to sell repair kits like crazy every year by the hundreds to folks who had pvb's until they got tired of the headaches and cost to repair them in the spring and fall and went to in ground dcva assm's. that cured the problem.  "Practice like you want to play in the game" | |||
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| Banned for showing his ass |
Thank you, got it ! Learned my one new thing today ... gotta learn one new thing everyday at my age.  | |||
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| Green grass and high tides |
Your welcome old dino. Glad to help. I love your handle here btw. Always have. "Practice like you want to play in the game" | |||
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| Banned for showing his ass |
Thank you sir. When I was working in law enforcement, all the new guys called me a dinosaur since my ways were so old school. Eventually I became the old dino. Oh, and I also love the Rat Pack especially Frank and Dean Martin (aka Dino). | |||
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