Hi all, this is my first post.
I bought my home with pool in 2007. The pool is approximately 40,000g and a standard square with rounded corners shape with 2" piping. both a 60sqft DE filter and heater are inline after the pump. the pool has two skimmers and a bottom drain, with 4 returns. the equipment is sitting ~15ft away from the edge of the pool and level with the ground on two concrete slabs. there is mulch around the equipment, but covering the pump.
I replaced the "dead on opening" Jandy that came with the pool in May 07 (~ 5 years old). Replaced with a Hayward Super pump 1.5hp, which died last weekend (3 years old) . I am adding a Pentair variable speed for a number of reasons.
I received the pump last night and started to look through the material. The book notes that the following "Do not install 90° elbows directly into pump inlet or outlet. A valve, elbow or tee installed in the suction line
should be no closer to the front of the pump than five (5) times the suction line pipe diameter (i.e., two (2)
inch pipe requires a ten (10) inch straight run in front of the suction inlet of the pump). This will help the
pump prime faster and last longer.
My piping is 10" at best before i hit the intakes and the three way valve elbows the intakes to be inline with the pump intake, could this be a cause of the two pump failures?
The pumps have been exposed to the NJ summers (rain) and potentially to the sprinkler system, could this have shortened the life?
I can post some pics tonight if that might help. I am trying to make sure I dont have a design issue with the pool and blow a much more expensive pump.
We have had other wierd issues, such as not being able to keep chlorine up each year when we open, due to low Cyranic acid. I have had to add each year to get from 25 up to 50. I have read, once in, it should not go down. I do have to add water when I open, but never more than maybe 5% of volume.
Sorry for the long post. Appreciate any insight
I bought my home with pool in 2007. The pool is approximately 40,000g and a standard square with rounded corners shape with 2" piping. both a 60sqft DE filter and heater are inline after the pump. the pool has two skimmers and a bottom drain, with 4 returns. the equipment is sitting ~15ft away from the edge of the pool and level with the ground on two concrete slabs. there is mulch around the equipment, but covering the pump.
I replaced the "dead on opening" Jandy that came with the pool in May 07 (~ 5 years old). Replaced with a Hayward Super pump 1.5hp, which died last weekend (3 years old) . I am adding a Pentair variable speed for a number of reasons.
I received the pump last night and started to look through the material. The book notes that the following "Do not install 90° elbows directly into pump inlet or outlet. A valve, elbow or tee installed in the suction line
should be no closer to the front of the pump than five (5) times the suction line pipe diameter (i.e., two (2)
inch pipe requires a ten (10) inch straight run in front of the suction inlet of the pump). This will help the
pump prime faster and last longer.
My piping is 10" at best before i hit the intakes and the three way valve elbows the intakes to be inline with the pump intake, could this be a cause of the two pump failures?
The pumps have been exposed to the NJ summers (rain) and potentially to the sprinkler system, could this have shortened the life?
I can post some pics tonight if that might help. I am trying to make sure I dont have a design issue with the pool and blow a much more expensive pump.
We have had other wierd issues, such as not being able to keep chlorine up each year when we open, due to low Cyranic acid. I have had to add each year to get from 25 up to 50. I have read, once in, it should not go down. I do have to add water when I open, but never more than maybe 5% of volume.
Sorry for the long post. Appreciate any insight