Our pressure is usually at a 10, but lately it has been at a 1-2. We have no line blockage that we know of, have checked the lines many times, put the hose through, backwashed many times. The jets are not blowing as they should and the navigator is not moving as quickly as it should. We have changed all the gaskets already. All debris is clear. All regular maintenance, shoes, wings, hoses, etc, are replaced regularly. Our pool is 4 years old. Would changing the sand in the pool pump help with this? Are there any filters in sand pumps? When they install your pool they don't fill you in on anything other than the normal upkeep.
We have a plaster IG play pool with a sand pump.