Intermitant microbubbles

[trido]

I just installed a new barracuda for my CL. It took the place of two noisy mag 18s and was well worth the money. Not only do I have more flow, the noise reduction is huge. The barracuda has 1.5" inlet and outlets. I have two 1.25" OTB intakes which T into 2" pipe down to the pump. I then have 2" pipe with runs up to a T which then reduces down to a 1" super squirt and a 1" open flow system. About every fiften to twenty minutes one or the other return systems pumps a surge of microbubbles (which have been building up somewhere) into the tank.

Any ideas how to trace the source of micro bubbles?

 

[Anonymous]

How deep is the input? Watch the input and see if it suck in air as the water level drop slightly.

 

[trido]

The Intake holes start at about 8 to 9 inches from the surface. No whirlpools here. I am thinking that I have some sort of venturi effect happening on one of my joints and was hoping there is a fool proof method of finding the leak.

 

[Anonymous]

>...fool proof method of finding the leak.

Close the outlets with caps or valve, and put a brushing on the last remain opening. The brushing need to have an adaptor for a bike pump, and pressurize it to about 10 psi. If there is any leak on that thing, it wil be audible if not visible.

 

[trido]

Believe it or not, I had a suspect leak in mind and put my ear to the pipe until I heard a surge of air run through the pipe. My wife looked at me funny as I did it several times over a few hours. When I found the leak I cut it out like the cancer it was. It was a threaded fitting for filling the CL when it was new. I simply put an end cap on it realizing that I can prime the CL with a funnel at the union valve. Learn something new every day.