Has anyone ever tried one of these units? They claim a pressure tank is not required for this pump.
We do have a check valve on the suction line. This pump draws water from Lake Ontario - about 20ft below surface via a tripod arrangement with three inlets about 2ft above lake bottom. Inlets don't have screens but do prevent large items (like fish!) from entering. Originally we tried foot valves, but they just would not work in this environment. To clear them would require a diver or a means of raising the line from a boat, or in winter, breaking through 3 ft of iceIf you don't have a check valve or foot valve, the control thing is acting as the check valve. In that case the pump below it can drain out over time if there is the slightest leak anywhere. But....If there is voltage to the pump and yet it is not running, the control thing itself is most likely the problem. Should still be under warranty??
The strainer has given us problems because of leaking manufacturer supplied o-ring seals. For this type of application, a strainer is essential to keep out grit and seashells and protect the (plastic) internals of the pump and the Fluomac! Burcam insist on it being there! I would not eliminate it, but would like to find a better design. (my purpose oin restarting this thread)I would not use a suction screen on a booster or well pump, as starving the suction of a pump is a bad thing. But those type controllers may recommend a suction screen to keep debris from getting in the flow switch. A good pump controller like a PK1A doesn't have a flow switch, and therefore would not need a suction screen. But a regular wye strainer with a 20 mesh screen should not be a problem as far as leaks go.
What was the problem with the old pump, and could that still be the issue?
I am familiar with Y-strainers and basket strainers as used in industry. Our lake water pump suction is unfortunately not a very good application for a Y-strainer - small screen area, more difficult cleaning and higher pressure loss. Other than quality, our unit with basket & bowl works - screen never gets clogged up. I posted because I was looking for any experience some may have with better quality units. That is all.There is no such thing as a reliable suction strainer as they will get clogged up and are not reliable. But you can get Wye Strainers that at least does not have leaky o-rings like these. https://www.watts.com/products/plumbing-flow-control-solutions/strainers/y-wye-strainers
Pumps will pass fairly large particles right on through, so it is best to filter on the discharge side of the pump so the pump is not starved for water. It is the flow switch in the controller that needs the strainer. Like I said a good pump control doesn't need a strainer. A good pump and control will also last several times longer than what you have.
Looks like those pumps are ready for the dump!Here is a picture of a pump control that was the predecessor to the Cycle Stop Valve where the pump was not touched for 52 years.
I don't think I said that.There are lots of different kinds of wye strainers. You can always use a larger one and bush it down to your pipe size, and that will give you more surface area and less friction. But if you never catch anything in the strainer you have, I would just not just not use a strainer as that is one of the problems.
Anyway, I think we are done here.
This is awkward, but...
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