-update 11/13 below-
How long do mixing elbows last?
Mine in 6 years old. About 300 hours. Looks new (pic).
....on the outside.
I suddenly have reduced raw water flow. Pacific salt water last 2 years. Upper Chesapeake previous 4.
I checked the through hull inlet, gusher. Checked sea strainer outlet, much less water. Yet no restrictions. I put the strainer in 2 years ago. Boat didn't have one previous 32 years.
So I bypassed the strainer. Same low flow at the exhaust. Maybe a quarter of what it should be.
Very recent impeller. Oberdorfer pump. But put another new impeller in just to check. Same problem.
I had checked the HX a couple months ago, looked clear. But it's the original (1984) Universal 2" with only 1 end cap. Can't see the zinc pencil end, but poked around in there with a wire and it seemed clear.
I'm wondering is it the HX clogged where I can't see it, or the mixing elbow. Or...
Any comments appreciated.
How long do mixing elbows last?
Mine in 6 years old. About 300 hours. Looks new (pic).
....on the outside.
I suddenly have reduced raw water flow. Pacific salt water last 2 years. Upper Chesapeake previous 4.
I checked the through hull inlet, gusher. Checked sea strainer outlet, much less water. Yet no restrictions. I put the strainer in 2 years ago. Boat didn't have one previous 32 years.
So I bypassed the strainer. Same low flow at the exhaust. Maybe a quarter of what it should be.
Very recent impeller. Oberdorfer pump. But put another new impeller in just to check. Same problem.
I had checked the HX a couple months ago, looked clear. But it's the original (1984) Universal 2" with only 1 end cap. Can't see the zinc pencil end, but poked around in there with a wire and it seemed clear.
I'm wondering is it the HX clogged where I can't see it, or the mixing elbow. Or...
Any comments appreciated.
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