I am a new in ground pool owner and trying to figure out exactly what I have and how to operate it.
I had what I thought was a DE filter. I was able to find the part number and it is a Pentair 160316. I put an image of it in my post here: http://www.troublefreepool.com/threa...New-pool-owner
After searching online for the manual, it is listed as a cartridge filter. Ok fine, it's a cartridge filter. But further reading in the manual shows the following: "When the cartridge element filter is used on new pools and after cleaning the elements, introduce into the system .5 pounds of diatomaceous earth per every 100 square feet of filter area, (a one-pound coffee can equals .5 pounds of diatomaceous earth). Mix the diatomite with water and pour it into the skimmer after the pump is primed and the system is operating. This will enhance the filtration of your water."
So is it a DE filter or cartridge filter? Or technically both? Is it normal for cartridge filters to have DE in them? Do I actually need to do this? Where do you buy DE?
I still need to drain some water out of the pool due to the rain we have had here lately. With this type of filter, can I use the drain that is on it? There are no other drain areas that I can find anywhere else in the system. The manual says nothing other than calling it a "drain cap assembly." If I do this, will I need to introduce DE back into the system?