Hello,
We have an inground pool that was installed by a local dealer. It's a vinyl-lined pool with concrete walls, and holds about 22,000 gallons of water.
The dealer also provided a pump, sand filter, and chlorinator feed tank (sorry if my terminology is incorrect).
We've had the pool for 4 years, and the pump/filter system seems to have worked fine, except for 1 overheating incident when the water level got too low in the pool.
This year, the pump motor, hummed, smoked, then quit, so I'm looking to replace it.
Here's my question: This pump unit is a Jacuzzi S15LR-3. Most of the Internet sites on which I've been able to find it list it as an "above-ground" pool pump. I called a couple of places to find out the difference between an "above-ground" and an "in-ground" pool pump.
One place said that above-ground pumps weren't self-priming, and therefore depended upon being lower that the pool water level. This confuses me a bit since every place I've seen it listed describes it as a self-priming pump. My own experience as been that an inch or two of residual water in the pump has always been enough for it to create enough vacuum to fully prime itself. Only when the pump has been completely dry have I had to prime it manually.
Another place stated that because it is an above-ground pump, it doesn't have a "diffuser" (no explanation of what that is) and therefore can't be used with in-ground pools.
Is this all hype? Obviously, this pump has worked for 4 years with my in-ground pool (given that I've occasionally had to manually prime it.) I've noticed that, at a given horsepower, all of the "in-ground" pumps tend to be higher-priced.
Thanks for any info...