Question about bulkheads and pvc fittings

  • We are currently upgrading MFK. thanks! -neo
Oughtsix said:
Another approach is to use the hole saw to drill the size hole you need in a piece of 1/4" plywood. Then you can clamp (Double sided tape?) the 1/4" plywood to the outside bottom of the tank positioning the hole in the plywood where you need the hole in the tank to go. You can then use the hole in the 1/4" plywood to guide the hole saw without a pilot bit.

This might be the easiest way to go?
Click to expand...

this could work. A 44mm hole saw is what you need for a 1"bulkhead. Mine(Lenox) came with a pilot bit which makes life a lot easier at the end of the day.

Are these drains or returns? I use 1" returns and 1 1/5" drains "Herbie" style on my big tank and the drains are total overkill lol. My gate vale is probably 90% closed handling around 2400 gph. Bean himself runs 1" bulkheads on his drain setup and at full siphon, his handle 2000gph easily
 
im gona use the (currently 3/4") hole for return
and the 1" for drain, prolly use a 1 1/2" durso pipe reduced to 1"

plan on running 2 1200gph pumps but with almost a 7' head loss (my tank is high) it'll be alot slower but closing barely in at 10x turnover so im fine with it.
 
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