[DieselDeere]

What is a good range of CFM to blow out a 1" 13 GPM sprinckler line?

 

[HBFOXJr]

100-125 cfm

 

[DieselDeere]

WOW For One Zone?

 

[greenworldh20]

you want it done right...for more info...please attend the 'greenworld school of sprinklers'

just email me the cc# and the knowledge will start flowing from my mind to your brain....

laugh, i had a long day.

brian

 

[DanaMac]

We get the 185 as well and can do 2-3 zones at a time. These are all residentials. Commercial is usually one at a time.

By doing 2-3 zones at a time and with out meeting the customer (having them shut water off before we're there) I can do 15-25 in a day. Have done 30 in one long day before. Schedule as close as possible to avoind down time driving.

 

[DieselDeere]

100-125 cfm at what pressure?

 

[HBFOXJr]

I play with the adjustment valve and get it to where the compressor shuts of at 70+ psi and runs wide open with one compressor valve open at 50-60 psi. We don't shut down between zones either. Let it the controller run and the air rip.

 

[DieselDeere]

Do you agree with 100-125 CFM too?

 

[Ground Master]

I believe you can use a smaller compressor to blowout a 1" 13 gpm sprinkler line.

 

[DieselDeere]

How much do you think?

 

[Grassmechanic]

I'd use a min of 20 CFM on that line, but you can probably do it with around 10 CFM, maybe even a little less.

 

[DieselDeere]

Thanks, were in S.E. MI are you located?

 

[Grassmechanic]

1 hr north of Detroit, south of Port Huron.

 

[DieselDeere]

What time of the year do you usually winterize?

 

[Grassmechanic]

Mid October

 

[DieselDeere]

When do you try to have them all done by?

 

[Grassmechanic]

no later than first week of Nov. Too close to deer season!

 

[DieselDeere]

Have you ever tried to do more than 3 zones at a time with the 185 CFM compressor?

 

[DieselDeere]

What kind of compressor do you use to do a 1" line?

 

[DanaMac]

If I know the system and the zones are fairly small, sure, I can do more than 3 zones. You can always try it and shut down zones as needed. We try and not even communicate with the client when we are there for the service. We open the zones manually thru the bleeder or solenoid. If the valve is a known problem, meaning it won't shut down manually, we have battery operated actuators. Most resi systems here have the manifold in on or two places. Not the multiple alves throughout the yard.

Guys, this is not rocket science. If it was I'd better be making a lot more $$$. Go to your local rental shop, even if you are planning to buy a compressor (who knows, maybe they have one for sale. Quite often they do), and ask them what most companies use. Have them show you the different sizes, how to adjust the pressure, the hoses, hook ups. if you rent and it doesn't meet your needs, take it back. Get a larger or smaller compressor. Get one to make it quick, easy and efficient.

AND WEAR EAR PROTECTION WHEN DOING BLOWOUTS!!!!

The compressors have a ball valve at the point where you hook the hoses up. I also have a ball valve at the end of the hose where I hook to the PVB, RP, manifold or where ever. I'll post a pic of my set up for attaching the the POC.