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Blackeagle · 01-29-2003, 01:31 AM

I think what BillA was try'n to tell you is that the inlet, which has weak suction, benifits from larger lines as they offer less friction/resistence to the water. In other words have the water piled up on the inlet side waiting to get in. Which is exactly what a set up with a large 1 1/2" line (res) that reduces to 3/4" only at the last moment will give you. A 3/4" FNPT & 3/4" barb with a 3/4" line to minimumize resistences some would help out your pump and requires no modding/building skills. I'd use braided or copper line to insure no collapse or kink problems over time.

BigBen uses 3/4" lines on his Little Giant pump for best performance, and that pump isn't as powerfull as a MD30-rlz. Might want to PM BigBen and ask how much better his performance is with 3/4" vs. 5/8".

01-29-2003, 01:31 AM	#30
Blackeagle Thermophile Join Date: Oct 2002 Location: U.S.A = Michigan Posts: 1,243	I think what BillA was try'n to tell you is that the inlet, which has weak suction, benifits from larger lines as they offer less friction/resistence to the water. In other words have the water piled up on the inlet side waiting to get in. Which is exactly what a set up with a large 1 1/2" line (res) that reduces to 3/4" only at the last moment will give you. A 3/4" FNPT & 3/4" barb with a 3/4" line to minimumize resistences some would help out your pump and requires no modding/building skills. I'd use braided or copper line to insure no collapse or kink problems over time. BigBen uses 3/4" lines on his Little Giant pump for best performance, and that pump isn't as powerfull as a MD30-rlz. Might want to PM BigBen and ask how much better his performance is with 3/4" vs. 5/8".