need help on HoB overflow,please

[TauntingBeef]

so I don't have a drilled tank and I need to connect my sump so I'm about to order a HoB overflow 2 choice that I see is the

1. Esh Overflow Box To 125g Sngl

2. CPR CS50 Overflow Box

I just am not sure on the 1 first one the tube makes me nervous so some any1 has used these products a little info on the would be sweet thanks

 

[mcgyvr]

In general both are just fine..
Make sure that if you get the CPR that you get the aqualifter or run the airline to a venturi on a powerhead.. With a larger weir like that air can get stuck in the top of it and cause problems/loss of siphon,etc..
With the eshopps thats "usually" not an issue as flow through the pipe is enough to pull them right out.

Personally I'd NEVER run a HOB overflow though.. I have in the past and it worried the heck out of me each nite.. Either drill or go sumpless is the only thing I will ever do.

 

[Justletters7]

I have a CPR CS100 overflow, like mcgyvr said above you need a aqualifter to keep air from building up and have a float switch on your return pump to prevent flooding. Also the bulk head is in metric which made it difficult to hook up a pvc pipe. Over all though I am happy with the overflow its well built and easy to adjust.

 

[DePinchGonze]

Is drilling the tank out of the question? It really is quite easy.

 

[TauntingBeef]

yea cant drill it so we shall try this way and if I don't like I can go sumpless than

 

[madweazl]

I've used both boxes in the past and I prefer the eShopps design because the CPR is almost impossible to get clean (not that it is needed often). I never had a functional problem with either however. A "gurgle buster" will help quiet things down.

 

[TauntingBeef]

good to know madweazl I picked up the eshopps so I will look in to the gurgle buster