CRP question

[untamed]

Originally Posted by martym

I was looking at my tank last night, and it dawned on me that if the aqualift were to quit or get plugged the main tank would quickly overflow. What do others do to have a safe guard so this doesn't happen? Other than having the tank drilled.

I ran a CPR overflow for many years. I don't think that what you've said is completely accurate. You should be able to shut off the aqualift pump and nothing should really change.

Now...if the aqualift remained off for days...things will eventually go bad...but nothing should happen immediately.

I didn't use an aqualift pump...I had the top of the overflow connected to the venturi of a powerhead. Even if the powerhead was off, or the venturi plugged...the system is still closed (vaccuum), so you shouldn't have an immediate failure of the siphon.

[dabandit]

I think he's talking about the overflow failing,not the pump. Can and does happen,twice for me though my tank is drilled.

[dabandit]

ahh I see the problem. Step1 sell sump,step2 build a sump around your equipment. My pump out chamber holds my water level at optimum for my skimmer(no fluctuation either) and prevents my display from overflowing. Cost me 20$ for sump tank and 12$ for the acrylic baffles the silicone I had.

[fiorano]

maybe you could drain your sump for a few hours and just add a last baffle right before your pump so there would be less water for it to pump into your tank if it did fail . but then you have to make sure you watch out for evaporation and such. just an idea.