Sump Question

[Cichlid savage II]

Depends on the amount of flow/turn over you want through it. Eshopps sells a nice overflow series called shadow. They sell small medium and large I think. I put a medium in a 75 it good for around 1200gph I think. I've done a single hole 1.5" on a 40b and I don't think I'd do a single hole on anything bigger than that. Remember that the hole size is going to be larger then the bulkhead you are using so if you are going to buy a hole bit check and see what size bulkhead needs what size bit before you buy one.

The tank is a 125 gal. The pump I ordered says it pumps 1,180 GPH @ 9.7'. That's filtering the entire volume of water about 9.5 times an hour. Additionally, there will be a canister filter for some additional bio but really for water polishing. I plan on using an 1 1/2" over flow assembly. I am wondering if 1 will be sufficient or should I drill 2.

As for the hole saw I ordered a diamond coated set of various sizes be cause the return I ordered is a different size..

 

[twentyleagues]

The tank is a 125 gal. The pump I ordered says it pumps 1,180 GPH @ 9.7'. That's filtering the entire volume of water about 9.5 times an hour. Additionally, there will be a canister filter for some additional bio but really for water polishing. I plan on using an 1 1/2" over flow assembly. I am wondering if 1 will be sufficient or should I drill 2.

As for the hole saw I ordered a diamond coated set of various sizes be cause the return I ordered is a different size..

Technically 1 1.5 will handle the flow but 2 will give you safety incase something plugs up 1 or semi plugs. I don't like the idea of maxing out the drain I'd rather run it at about 3/4 capacity or lower and have a back up drain just in case.

 

[duanes]

Technically 1 1.5 will handle the flow but 2 will give you safety incase something plugs up 1 or semi plugs. I don't like the idea of maxing out the drain I'd rather run it at about 3/4 capacity or lower and have a back up drain just in case.

Agree with this. Its always good to have a bit of extra insurance.
All it take is for a snail to get in, and some leaf litter/plant pieces to gather up and you get an overflowing tank on the floor.

If I remember right this is a 1.5" PVC overflow I woke to one morning, and caught just in time, after a couple cichlids decided to spawn, and rearrange the decor.

 

[Cichlid savage II]

Agree with this. Its always good to have a bit of extra insurance.
All it take is for a snail to get in, and some leaf litter/plant pieces to gather up and you get an overflowing tank on the floor.
View attachment 1456820
If I remember right this is a 1.5" PVC overflow I woke to one morning, and caught just in time, after a couple cichlids decided to spawn, and rearrange the decor.

I think you guys are right. Better safe than sorry.

 

[Backfromthedead]

The tank is a 125 gal. The pump I ordered says it pumps 1,180 GPH @ 9.7'. That's filtering the entire volume of water about 9.5 times an hour. Additionally, there will be a canister filter for some additional bio but really for water polishing. I plan on using an 1 1/2" over flow assembly. I am wondering if 1 will be sufficient or should I drill 2.

As for the hole saw I ordered a diamond coated set of various sizes be cause the return I ordered is a different size..

What pump model? Is it 1180 at 9.7'? Or 1180 and 9.7' max head?

Agree with the others about the emergency/backup drain. They are a necessity as far as I'm concerned.

 

[Cichlid savage II]

What pump model? Is it 1180 at 9.7'? Or 1180 and 9.7' max head?

Agree with the others about the emergency/backup drain. They are a necessity as far as I'm concerned.

It is 1180 at 9.7' max head.

 

[Backfromthedead]

It is 1180 at 9.7' max head.

Sorry, I'm still confused. If it can pump 1180gph at 9.7' ft head than it should work. If the pump is rated for 1180 gph at 0' head and has a max head rating of 9.7', then I dont think it will be strong enough for your setup. Pump make and model would be helpful in ascertaining this info.

 

[Cichlid savage II]

Sorry, I'm still confused. If it can pump 1180gph at 9.7' ft head than it should work. If the pump is rated for 1180 gph at 0' head and has a max head rating of 9.7', then I dont think it will be strong enough for your setup. Pump make and model would be helpful in ascertaining this info.

Hygger 952-4500

 

[Backfromthedead]

Hygger 952-4500

Ah yes, I see now. I hate to bear the bad news but that pump is undersized for a 1.5" main drai ime. With head and plumbing restrictions on your return line, that pump will probably only push 300-500 gph on max power. It will "work" to some degree, but you will have to significantly restrict your drain with a ball valve to maintain a quiet and reliable overflow.

Typically, I like to oversize my pumps to my drain size. For instance, on my tanks, I use a pump rated for at least 3000-4000gph at 0' head for every 1.5" drain I'm using. This way I run the pumps on around 50-75% power which both prolongs their lifespan and minimizes heat exchange with the water, and can still maintain 1000-1200 gph with head and plumbing restrictions.

However this all also depends on your sump setup as well. I run high turnover (10-15x) through sumps and main tank using no power heads or cans. Some people prefer to augment their tanks flow with those and run low turnover (3-5x) through the sump.

All in all though, I think you're gonna want a bigger pump.

 

[Cichlid savage II]

Ah yes, I see now. I hate to bear the bad news but that pump is undersized for a 1.5" main drai ime. With head and plumbing restrictions on your return line, that pump will probably only push 300-500 gph on max power. It will "work" to some degree, but you will have to significantly restrict your drain with a ball valve to maintain a quiet and reliable overflow.

Typically, I like to oversize my pumps to my drain size. For instance, on my tanks, I use a pump rated for at least 3000-4000gph at 0' head for every 1.5" drain I'm using. This way I run the pumps on around 50-75% power which both prolongs their lifespan and minimizes heat exchange with the water, and can still maintain 1000-1200 gph with head and plumbing restrictions.

However this all also depends on your sump setup as well. I run high turnover (10-15x) through sumps and main tank using no power heads or cans. Some people prefer to augment their tanks flow with those and run low turnover (3-5x) through the sump.

All in all though, I think you're gonna want a bigger pump.

How much more punp would you suggest? This is the setup plan for a 125g tank which should give me approx 9.5 x volume gph turnover I plan on augmenting the sump with a canister for some buo and polishing . The sump will have mechanical (socks, sponges, then floss) biological (still researching lava rock vs bio balls vs ceramic blocks etc.) and hydroponics. I am in the process of sketching it out now. I do plan on having ball valves in order to regulate flow on the drains and return.