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dsmhero
05-27-2012, 01:32 PM
I have a CPR BakPak HOB skimmer that has great bubble production with the upgraded pump but the last few days the bubble production has been very low. It is a venturi style skimmer and the water level is consistent.

24g tank with a pair of clowns and a carpenter wrasse.
Nitrates - 0
Phos - 0

I am curious as to why it is barely producing bubbles. Any help would be wonderful, thank you in advance!

IPisces
05-27-2012, 02:05 PM
It is possible the airline in the venturi is clogged. They tend to build up salt and clog.
Some people use a cup of boiling RO/DI water and drop the airline into it and suck the hot water thru to disolve the blockage. Otherwise remove the ventury and clear the air inlet with something.

dsmhero
05-27-2012, 02:12 PM
I will try that...thank you!

dsmhero
05-27-2012, 03:53 PM
Problem solved! Thank you for the advice, the skimmer has only been up for about a month but the snail guard was already plugged up.

Skimmy
05-27-2012, 04:23 PM
it wouldnt be a bad idea to take the entire pump offline and give it the once over and a rinse as well,
but ipisces nailed it, its prolly a clogged venturi.

dsmhero
05-27-2012, 08:38 PM
it wouldnt be a bad idea to take the entire pump offline and give it the once over and a rinse as well,
but ipisces nailed it, its prolly a clogged venturi.

I ended up pulling it and doing a nice vinegar bath.