I've never seen this before so hoping someone has and can help me pinpoint the source.
I've just reopened our little AGP (just under a week now). When the ice melted off and I started scooping the leaves etc off the bottom I noticed I was scooping up nets full of this white sediment. I assume it was salt that came out of solution when the water froze and the concentrations went through the roof. I had drained the pool about 2/5ths (just enough to clear the fittings) and if I had to put money on it I'd say it froze pretty much solid this winter. When I topped up the pool and checked the salt I had to add 28lbs to bring it up to the right levels so I'm guessing it was salt on the bottom? I was too chicken to taste it......
But here's the thing. I've got a NEW sediment. There's a fine black powder gathering around the seams and wrinkles. I've inch by inch vacuumed and scrubbed the pool twice now and it keeps coming back.
When I closed the pool last fall I gave the sand filter a good long rinse and then used the filter/pump to drain down to the bottom of the skimmer so it was well, well flushed I'm sure. I drained it as well as I could before storing it and assume I did a pretty good job at that because I was able to lift the thing up the one step out of the garage. It was holy heavy still but not sand-and-water heavy. There was a little bit of dribbling out the drain as it moved around but not a load.
I don't know if the pics will help or not but here they are. Tomorrow I'll hop in and gather some up so I can determine if it's fine sand or mushy dirt. I feel like it can't be sand based on the way it ghosts into the vac hose but I could be wrong. Sand filter is now on it's third season - original sand.
I've just reopened our little AGP (just under a week now). When the ice melted off and I started scooping the leaves etc off the bottom I noticed I was scooping up nets full of this white sediment. I assume it was salt that came out of solution when the water froze and the concentrations went through the roof. I had drained the pool about 2/5ths (just enough to clear the fittings) and if I had to put money on it I'd say it froze pretty much solid this winter. When I topped up the pool and checked the salt I had to add 28lbs to bring it up to the right levels so I'm guessing it was salt on the bottom? I was too chicken to taste it......
But here's the thing. I've got a NEW sediment. There's a fine black powder gathering around the seams and wrinkles. I've inch by inch vacuumed and scrubbed the pool twice now and it keeps coming back.
When I closed the pool last fall I gave the sand filter a good long rinse and then used the filter/pump to drain down to the bottom of the skimmer so it was well, well flushed I'm sure. I drained it as well as I could before storing it and assume I did a pretty good job at that because I was able to lift the thing up the one step out of the garage. It was holy heavy still but not sand-and-water heavy. There was a little bit of dribbling out the drain as it moved around but not a load.
I don't know if the pics will help or not but here they are. Tomorrow I'll hop in and gather some up so I can determine if it's fine sand or mushy dirt. I feel like it can't be sand based on the way it ghosts into the vac hose but I could be wrong. Sand filter is now on it's third season - original sand.
