Compresor Blowout fitting

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evanwellens

evanwellens

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Jun 9, 2012
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Stony Point, NY
My first time closing my pool after years of hiring it out and having issues. Was planning on using my compressor to blow out the lines and I read here that you can directly connect to the pool pumps drain valve. My compressor hose has quick connect fittings. Does anyone know what adapters/fitting might help make the connection ? The pump is a hayward northstar .

Also is there a safe PSI range to operate at ?

Thanks !!
 
I have not closed a pool with a compressor but I know from winterizing my sprinkler system you need a lot of air not high PSI. I've never gone over 40 PSI on my sprinklers. I think my filter gauge maxes out at 30, probably don't want to go over that.

As for the fitting, pull the plug out of your pump and head down to the hardware store. Maybe you'll get lucky and find someone in the plumping section to help you cobble together some fittings to adapt over the the quick connector.
 
The NPT fitting goes on the pump basket. Remove screw and place fitting in there with the quick connect. Use low PSI pressure first (like 15-20) and see if you can clear the lines, if not bump up to no more than 30 psi. If you search the forum, people have had success with this type of pressure.

The safest way is to lower the water below the return jets and clear the lines. There will be no resistance on the way back. You should also isolate each area as you clear the lines. I have valves that control each skimmer and each set of return. If this was me, I would isolate each area so only one run is being cleared at a time.

MPV should be on recirculate while you are doing this. Thanks!
 
So is a shop vac a better plan ? I have a big 6HP , just thought it might be easier if there is a fitting that can connect to my compressor .

MPV ? Sorry don't know the acronym.

Thanks for the advice , getting cold , will probably get more hands on next week..
 
Thanks I got the fitting into the housing to for the compressor and flexible coupling to match the shop vac to the 1 1/2 PVC opening. Seemed to need to use the compressor and the shop vac. The compressor couldn't generate enough air volume to get by my filter's auto purge to blow out the returns. The shop vac couldn't generate enough pressure to blow out the main until it bubbled.
 
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