My $5 Return Jet Aerator

JaceTheAce

Bronze Supporter
Apr 10, 2020
17
Utah
I've received a lot of useful help from this forum and want to give back a bit.

My pool pH keeps dropping weekly and I need to raise pH without touching my already high TA so as a quick fix I've been adding Borax. I reached the 60ppm threshold and needed to start aerating. I looked at the "SPA O2" return jet aerator nozzle, but holy Crud it's obscenely overpriced ($60) for a block of plastic. So I decided to try something DIY first to see if it would work, and it turns out it worked beautifully.

My solution is a $4 bar clamp from Harbor Freight and a $1 length of 1/2" PVC from Homer Depot. All I did was zippy tie the pipe to the clamp in front of the return jet and 7 hours later my pH was up from 7.1 to 7.3. I'm running it again today for 8 hours to get it to the 7.4 range.

Ignore the plastic bucket. I just forgot to move it for the photo.
 

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JaceTheAce

Bronze Supporter
Apr 10, 2020
17
Utah
Can you please explain how that works. Is this sort of a venturi effect.
Yes, Venturi Effect pulls air into the return stream. I first tested by just holding a section of pipe over the return stream and it made a jet of bubbles. I'm still surprised it was so simple and it works in raising pH.