Sometimes, instead of a screw where the little black thingy is, it's a switch that you can flip open or closed.
Sometimes, instead of a screw where the little black thingy is, it's a switch that you can flip open or closed.
"There are no finger prints under water."
Well, I was going to wait another couple weeks to blow out the lines, but it was supposed to get pretty cold last night and supposed to get really cold overnight for the weekend. So I ended up winterizing the system last night. 33 gal Craftsman compressor seems to handle it fine, although still takes about an hour just letting it recover and I'm paranoid about having lines freeze . . . so I usually hit each zone twice. It's probably overkill but an extra 30 mins vs a lot of digging and heartache later seems worth it.
Sometimes I think about trying to pick up a better gas-powered compressor with higher CFM, but not sure it would be worth it in the long run financially vs the potential time savings each year over what I use now.
I use a 26 gallon Craftsman compressor and blow out each line twice.
the first time forces out the large amount of water, the second time gets a lot of vapor that would freeze sitting in the sprinkler heads over the winter.
I have six zones, each takes about 10 minutes, hour total. Must be careful how much pressure ( under 50 pounds) goes in the line the first pass or I rupture a two bit gasket in the anti siphon valve.
Last edited by 10x; 10-09-2018 at 11:03.
Ok I'll bite. Since you didnt specify your current HP or CFM & only the 1 use, here's my 2 cents: Unless you're planning to run multiple pneumatic tools @ the same time or run a torch for 30 mins or more at short rest intervals while in the field, or you want to moonlight & winterize systems & eventually turn a profit, I don't see much advantage over what you've got now, it gets the job done. : )
Last edited by ChickNorris; 10-09-2018 at 11:11.
My airstream has been stolen by dopers
The weather forcast got me worried so I blew out the system last night.
I have a bigger Kobalt compressor. Puts out 5.9cfm at 40psi and is louder than hell. Ideally you need 8cfm+ but like CN said you can do with less. If you got a good neighbour ask to borrow their compresor and simease the outputs.
Just blew out my system with the 6 gal mentioned earlier. Works great took 25 minutes total.
Don't be stupid!!!!!
Yeah . . . I am pretty sure the numbers wouldn't add up to upgrade barring some unusual find. Mine's a 6HP 33-gal Craftsman (8.6 scfm @ 40 psi / 6.4 scfm @90 psi) that I scored on CL several years back. It gets the job done, just takes some time. I have no interest in doing winterizing for anyone other than myself. I literally use that compressor once a year for the sprinklers. I have a 15 gal Craftsman (also a CL buy that I bought first) and a little Harbor Freight pancake compressor that I use all the time since it's so portable.
Last edited by ChickNorris; 10-09-2018 at 20:41.
My airstream has been stolen by dopers
1.5 inches of snow this morning, 32 degrees. There is enough ground heat that i am not worried about the system freezing for a day or two. Then i will blow out the system.
I actually tried this once with my 33 gal and my 15 gal and it didn't seem to be working well (not "better" than just using the 33 gal by itself). But it's highly possible that I didn't know what I was doing. LOL. I had looked at some videos and tried running lines from both outputs into a T and then a single hose from that to the sprinkler blowout connector. Maybe next year I'll try it again and see if I can figure it out.