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Sump/ refugium without drilling tank
- Thread starter DYIguy
- Start date
Have you looked cpr overflows? You just need a pump to create the siphon and you're good to go. Deluxe CS50 Overflow with Lid and Aqua Lifter - CPR Aquatics (DISCONTINUED)
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r2reyzer
NJRC Member
I’ve used overflows as well without issues. But curious, what’s the hesitation to drilling your tank? Bigger tanks like 75’s have thicker glass and are relatively easy to drill (assuming they aren’t tempered). And in the long run, it’s more reliable then a over the top overflow.
Salted
NJRC Member
I am using this - PF-800 HOB Overflow - Eshopps . I've already had power outs and it works perfectly as advertised and doesn't take up another outlet. I have a brs 10% off code I can give you if you need. In addition, I bought these for my return https://www.amazon.com/gp/product/B07C5FVSQB/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 and this for my drain https://www.amazon.com/gp/product/B000H5ZTUY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
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The CPR Marcus linked is actually cheaper by $30 on Amazon.
I'm partial to the Eshopps. As Salt mentioned they work incredibly well, when set properly you cant overflow the sump or tank, and you can easily turn power on and off and they resume suction 99 out of 100 times.
The CPRs rely on an airlifter pump to maintain flow, which can get noisy (and you have to balance a pump on top. THe Eshopps are run by vaccuum and are virtually silent.
Here's the one I've used on smaller tanks, and am ordering again for a 50g cube...
I'm partial to the Eshopps. As Salt mentioned they work incredibly well, when set properly you cant overflow the sump or tank, and you can easily turn power on and off and they resume suction 99 out of 100 times.
The CPRs rely on an airlifter pump to maintain flow, which can get noisy (and you have to balance a pump on top. THe Eshopps are run by vaccuum and are virtually silent.
Here's the one I've used on smaller tanks, and am ordering again for a 50g cube...
DYIguy
NJRC Member
DYIguy
NJRC Member
I looked into the overflow boxes and have been thinking- why not an internal overflow with a submersible pump- the first question is to make sure to stop the 'siphon effect'- which the cutouts will at the right level- water remains in the overflow unit so the pump is primed when power comes back on- the other question is the same for any sump- adjusting the return pump to match the intake. An important questions is either a check valve on the return or positioning the return in the tank to be at/ close to surface level- am I missing something here
DangerDave
NJRC Member
IMO, external overflows are a terrible idea. I built and ran one on a large freshwater tank for over a decade (tank wasn’t in a finished part of the house). You need to constantly run an aqua lifter to guarantee to won’t lose syphon in the event. I replaced them three times over the years as they burned out (they’re cheap, keep a spare handy).
But hey, as long at the pump restarts when the power goes back on, you should be ok.
But hey, as long at the pump restarts when the power goes back on, you should be ok.
DYIguy
NJRC Member
I don't trust myself drilling a tank
Salted
NJRC Member
Sea Level will drill it.
DYIguy
NJRC Member
It took me a day to get it into the house, along with some out of the box thinking- it's staying where it is- not going through that again. BTW the toadstool just had a baby
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