1st time sump opinions needed

[jaws7777]

Guys i really appreciate the time you've all taken explaining this to me and showing me your set ups. I think im starting to see how this all works.

Im gonna stsrt tracking down supplies this week.

Read about the bubbles that can cause loss of siphon from the overflow (hob) so how do i avoid that if i purchase an eshopps over flow ?

As @duanes said he used an airline hose attsched to a power head.

Would an aquailfter work well with an eshopps Over flow ? The pic is a cpr.

 

[duanes]

The aqualifter does the same thing as my power head, and is what is manufacturer recommended for the CPR.
With the Eshopps I didn't have the same loss of siphon problem as the CPR, I believe the large area in the CPR collects air bubbles easier.
I did check daily on the Eshopps siphon tubes anyway though, and would occasionally need to reset the siphon, because bubbles can build up in any siphon type overflow. This is one of the reasons I started drilling all my tanks.
Below is (I believe an Eshopps) with double lines to the sump, you can see the 2 white PVC fittings in the overflow box.


I always tried to use 1 & 1/4" inner bore siphon tubes, to get the most flow

 

[jaws7777]

thanks duanes. Cant drill this one the tank is tempered.

Anyone know how to avoid the micro bubble issue with eshopps ? This set up has to be flood proof maybe best to go with the cpr then

 

[jaws7777]

Anyone know how to avoid the micro bubble with eshopps ? This set up has to be flood proof maybe best to go with the cpr then

I gotta start figuring out a pump to match the overflow. Say the over flow is 800 gph none of the pumps I've seen are exactly 800 gph

 

[millerkid519]

I have had my eshopps running for 2 years with no issues. The best way to do it is match your overflow to your pump. So you are going to have 800 gph turnover in your tank only buy 1000 gph overflow box

 

[soupa2]

most 75 gallon aqurium bottom glass are tempered but i don't think the 4 side panels are tempered.... i do beleive that you can drill your 75 gallon side or back panels.. i know my 125 gal sump bottom glass is tempered so all my holes are on the back glass..

 

[jaws7777]

No time to get into drilling now. I think I wasn't clear with the last question if the overflow box is rated at 800 gal does the pump have to match it exactly ? The ohms that I'm seeing aren't rated dead on 800 gal more like 796 for example

 

[millerkid519]

No that is fine to use a 800 gph overflow box with around 800 gph turnover.

 

[shookONES]

No that is fine to use a 800 gph overflow box with around 800 gph turnover.

On the contrary...you want to size your overflow box bigger than your pump intended. The closer you get to the max flow, the greater the risk of potential problems.

That said, the Eshopps HOBs work very well. I've used them in the past and have friends that use them to this day. I've never seen a single issue in all cases.

 

[DN328]

Jaws, based on my own experience I found my overflow box (actually the teethe) to be the limited factor in flow. I had since addressed that, but wanted to highlight what shookONES noted.

Also, my suggestion is consider DC pumps as you another method to control the flow rather than just with valves. You can always turn the pump down to match your overflow and drain pipe capacity.