Do you want to read an obvious sentence?
Here goes...
...something that is properly-sized is something that is the proper size; it is not too big and it is not to small...it is quite simply the perfect size.
Pretty obvious, huh?
Well, for a pool filter, regardless of the type of filter, the proper size is not the proper size. What? For a pool filter, you want one that is too big for the amount of gallons of water in your pool. A filter should always be bigger than it is supposed to be, according to the listed "Effective Filtration Area" for the various types and sizes of pool filters.
Remember these 2 slogans when you are considering the purchase of a new filter:
- bigger is always better!
- go big or go home!
Don't buy the biggest pool filter you can afford. Buy the biggest pool filter to get the job done AND make your pool maintenance requirements much quicker and easier, regardless of its cost. Now, some common sense is needed here...do not buy a $3,500.00 pool filter that will filter a large commercial pool with heavy use, but at the same time, if the $499.00 pool filter is the biggest filter that you can afford but it is too small for your pool (based on the number of gallons of water as well as the pump type/size and the plumbing pipe diameters), then you basically threw-away $499.00 for that filter; that is an over-statement, but the premise applies.
For a pool filter, the proper size is an over-sized filter.
You can read the Pool Manual for additional information about properly-sizing (and therefore over-sizing) the pool filter that would work best for your pool.