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gmat · 10-01-2002, 10:59 AM

First, let me clarify one point: 3/8" barbs = 8/10mm ID/OD (assuming 1mm walls), 1/2" barbs=10/12mm.
Then 1048 has both inlet and outlet in 1/2" = 10/12mm.
DD blocks comply to these specs.

Next, i think my pump is slightly cavitating. I have a parasite noise ("bzzzt") only when the pump is under load (ie in my PC). No such noise when the pump is free (ie in the kitchen sink).
The question is: should i port my pump inlet to prevent cavitation ?

10-01-2002, 10:59 AM	#22
gmat Thermophile Join Date: Mar 2001 Location: France Posts: 1,221	First, let me clarify one point: 3/8" barbs = 8/10mm ID/OD (assuming 1mm walls), 1/2" barbs=10/12mm. Then 1048 has both inlet and outlet in 1/2" = 10/12mm. DD blocks comply to these specs. Next, i think my pump is slightly cavitating. I have a parasite noise ("bzzzt") only when the pump is under load (ie in my PC). No such noise when the pump is free (ie in the kitchen sink). The question is: should i port my pump inlet to prevent cavitation ?