onther sump question

[mark]

The valve you mention is it on the output of the pump or return line to the sump (drain line)?

The hole size, 1.5" is the the hole in the tank glass or pipe/bulkhead size?

[mycat99]

i use one and ahalf pipe from my tank to the sump .the ball valve is on this .its 1 inch pipe from return pump up to tank and theres no valve on it .the baffles are one and a quarter inches apart