Hi,
When we purchased our house last year, the pool inspector noticed sand in the pool. He assumed that this was caused by a broken lateral in the sand filter. We had the sellers repair this, and they went ahead and replaced the entire filter with a Hayward Pro Series S210S filter. However, I've noticed that we are still getting sand in the pool. At first, I thought it may have been from our yard. We put a large paver patio in in the early Summer, and I thought it may have been the bedding sand or paver locking sand getting blown into the pool. However, it doesn't appear that this is the case. I've read online that this could be caused by a bad multiport valve. I'm planning to file a claim with our home warranty, but I want to make sure I'm finding the issue before paying the deductible.
I believe it may be the multiport valve because the filter was already replaced, so it shouldn't be a broken lateral (unless the new one broke). There are also a few other things I have noticed that may point to a faulty multiport valve. When we haven't back washed for a bit, if I turn the pump off and back on, the pump fills with dirty water for a second before being clear again. It seems like dirty water from the filter makes it way back to the pump when I turn it on. Lastly, when we turn the pump off, the filter fills up with air. Then when we turn the pump back on, a large amount of air is pushed through the return line. It doesn't take long for the pump to fill back up with water. Only a second or two. I'm not sure if this would point to a multiport valve issue or not.
The multiport valve is a Hayward Series Vari-Flo XL.
Thanks in advance!
When we purchased our house last year, the pool inspector noticed sand in the pool. He assumed that this was caused by a broken lateral in the sand filter. We had the sellers repair this, and they went ahead and replaced the entire filter with a Hayward Pro Series S210S filter. However, I've noticed that we are still getting sand in the pool. At first, I thought it may have been from our yard. We put a large paver patio in in the early Summer, and I thought it may have been the bedding sand or paver locking sand getting blown into the pool. However, it doesn't appear that this is the case. I've read online that this could be caused by a bad multiport valve. I'm planning to file a claim with our home warranty, but I want to make sure I'm finding the issue before paying the deductible.
I believe it may be the multiport valve because the filter was already replaced, so it shouldn't be a broken lateral (unless the new one broke). There are also a few other things I have noticed that may point to a faulty multiport valve. When we haven't back washed for a bit, if I turn the pump off and back on, the pump fills with dirty water for a second before being clear again. It seems like dirty water from the filter makes it way back to the pump when I turn it on. Lastly, when we turn the pump off, the filter fills up with air. Then when we turn the pump back on, a large amount of air is pushed through the return line. It doesn't take long for the pump to fill back up with water. Only a second or two. I'm not sure if this would point to a multiport valve issue or not.
The multiport valve is a Hayward Series Vari-Flo XL.
Thanks in advance!