I have a 5-year old 17'x29' rectangular Splash Superpool that holds 15,000 gallons. The dealer included a Sta-Rite Hi-Rate sand filter (P/N JSAL180E-58 also marked T-180WF) and a 1hp Sta-Rite pump (P/N ABG4E-2A4). The plastic base that holds the filter and pump cracked and will need to be replaced. This may be a good time for me to upgrade the filter and I would like some size advice.
The pool is used almost exclusively for our dogs and their canine friends. It's not uncommon for us to have 6-10 dogs in the pool four or five days a week. I have been able to keep the chemistry in line, but the dogs carry a lot of particulate matter into the pool which often results in cloudy water. It is sometimes a struggle to keep the water as clear as I'd like.
The sand filter label says it's 1.57 sqft and I am wondering if it would be worth switching to a bigger filter. If so, how big should I go? If I upsize, can I keep the 1hp pump? Is bigger always better, or is there a point of diminishing returns?