Had the pool for 2 years. It happened at the very beginning after build, was replaced, and just again just now.
Filter is about 4-5 feet above water up a slope and on back of house.
Pressure gauge shows 20 but looks like its not working.
Been too afraid to run it again after I noticed this! Could it explode?
Does this happen when the pump is on or off? Didmt notice until the pump was off.
Is the filter getting hot? Don't think so its kind of in a shady area.
Do you have a heater? Yes
What is the water temperature? 90
The silver sticker with the barcode should have a date. What is the date? 4/27/2017
Does the pump pot have water in it? Open it up and see if that releases the vacuum in the filter. I wouldn't run it again until you find out what the problem is. Add bleach daily and brush the pool after to mix it in so you don't go green.
This is the 2nd time this has happened? Do you have another (feature) pump downstream of this one? You are up on a slope but would need a significant amount of drop to create the amount of vacuum needed to implode a filter housing. I don't think it would "explode" but certainly it is compromised and the next step is the seal will break on it and it will leak badly.