Bulkhead questions

[Greg Depo]

So I have a 60mm hole drilled in this tank. I'd like to get a 1" return pipe into the bulkhead however that size it shows only a 1.5" pipe will fit. Whats the best option to get the 1" pipe into the bulkhead? Increase the size to 1.5 prior to the bulkhead? Or is there a bulkhead with larger sides that can make up the difference?

Thanks

 

[infinityends]

You'd need to use the 1.5" bulkhead and then use a 1.5"-1" reducing coupler

 

[Why-Me]

You'd need to use the 1.5" bulkhead and then use a 1.5"-1" reducing coupler

+1

 

[Rjramos]

Do you have another hole in the bottom of tank? What size? Is the 1.5 gonna be a gravity drain or coming from the pump?

 

[Greg Depo]

Do you have another hole in the bottom of tank? What size? Is the 1.5 gonna be a gravity drain or coming from the pump?

There's two 1.5" bulkheads. One for the internal overflow and the 2nd, the one I asked about, is for the return from a 1400 gph pump.

 

[Rjramos]

There's two 1.5" bulkheads. One for the internal overflow and the 2nd, the one I asked about, is for the return from a 1400 gph pump.

How big is the tank? You could move 1400 through 1” pipe.

 

[Greg Depo]

How big is the tank? You could move 1400 through 1” pipe.

It's a 75g with a 20 gallon sump. The pump outlet is 1" so I was planning on running 1" to the bulkhead. Was hoping not to have to go up to 1.5" to get through the bulkhead. Then back down to 3/4" for a locline nozzle.

 

[WVNed]

You put a bushing in it

 

[S.O.MLemos]

+1 to the bushing.....and if your going down to 3/4” after it doesn’t really matter how you reduce it because the most restriction will be at the 3/4”

 

[Greg Depo]

+1 to the bushing.....and if your going down to 3/4” after it doesn’t really matter how you reduce it because the most restriction will be at the 3/4”

Yeah I've been looking for a reducing bushing to help with the restriction loss. I guess I don't fully understand how the bushing would work inside a bulkhead. The bushing would go on the outside of the bulk head right? If so how would I step it down to 3/4" on the inside of the bushing then?

 

[WVNed]

You put a bushing in the connection outside of the tank and a 1 inch pipe fits the 1.5 inch bulkhead. The inside is another connection with more bushings.

 

[Why-Me]

Schedule 80 Reducing Bushing Spigot x Slip

Slip x Slip. PVC for your plumbing needs. Use Schedule 80 Slip x Slip Reducing Bushing to reduce pipe size by inserting directly into a fitting or valve. More professional look than white Schedule 40 PVC. The golden rule of plumbing is that every job takes three trips to the store. While this...

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[Greg Depo]

You put a bushing in the connection outside of the tank and a 1 inch pipe fits the 1.5 inch bulkhead. The inside is another connection with more bushings.

Not really sure how I can go from 1" bushing in a 1.5" bulkhead on the outside. Then have another bushing on the inside of that same bulkhead that changes the 1" PVC to a 3/4" but fills the 1.5" space of. Confusing that's for sure ha.

 

[Why-Me]

They make a 1 1/2" to 3/4" reducer

Schedule 80 Reducing Bushing Spigot x Slip

Slip x Slip. PVC for your plumbing needs. Use Schedule 80 Slip x Slip Reducing Bushing to reduce pipe size by inserting directly into a fitting or valve. More professional look than white Schedule 40 PVC. The golden rule of plumbing is that every job takes three trips to the store. While this...

www.bulkreefsupply.com

You stick short piece of 1 1/2" pipe in the outside bulkhead and then the reducing bushing I linked then your 1" return pipe will go right into that.
Boom 1" pipe into your 1 1/2" bulkhead.
Then you take two reducing threadxthread bushings on the inside of the tank that will drop from 1 1/2" to 1" then the next one will drop from 1" to 3/4" for your loc line.

I did something similar with my build I went from 1" bulkhead to 3/4" for loc line. I just didn't need to reduce into the bulkhead from outside like you are doing.

I posted a pic, you could do something similar but would need two of those gray threaded reducers.
Btw I used a threadxslip bulkhead for that. Threaded in tank and slip backside for the return plumbing.

 

[Rjramos]

It's a 75g with a 20 gallon sump. The pump outlet is 1" so I was planning on running 1" to the bulkhead. Was hoping not to have to go up to 1.5" to get through the bulkhead. Then back down to 3/4" for a locline nozzle.

Ok. Well the bulkhead has to stay 1 1/2” to seal properly. Place a 1 1/2”x 1” reducer on the bottom and 1 1/2”x 3/4” on the inside and that should do it. Why would they drill 1 1/2” bulkhead holes on a 75 gal I can’t understand, but that’s what you got.‍