pump/plumbing

[bruce 1]

My sump is drilled for 1 inch bulk heads, I am going to use a Reeflow Dart for the pump. The dart has a 2 inch inlet. Do I need to drill the sump bigger or will the 1 inch be OK?

 

[grouper therapy]

you need to drill bigger. General rule of thumb is never to restrict the pump intake. There are exceptions but none we use in the hobby.

 

[bruce 1]

It is a acrilic sump how would I drill it and keep the bit centered?

Edit: And should I put a ball valve before the pump?

 

[gmpolan]

Put a piece of wood in the inside of the sump, drill the bit into the center of the wood

 

[lilrobb]

Agreed, but if possible, put the wood OUTSIDE and drill inside tout outside while the sump rests on the wood...

 

[budsreef]

I always put a ball valve and union on the input and output of an external pump so it can be removed for cleaning without have to drain anything.

bruce 1;737887 wrote: It is a acrilic sump how would I drill it and keep the bit centered?

Edit: And should I put a ball valve before the pump?

 

[miami dolfan]

Budsreef;737930 wrote: I always put a ball valve and union on the input and output of an external pump so it can be removed for cleaning without have to drain anything.

+1000. This always works very well.

 

[grouper therapy]

You can drill the hole in the wood first then clamp it over the existing hole and use the wood as the guide.