We installed our pool and put a main drain in the deep end 9 years ago but never cut the liner, nor plumbed it into the filter. It is just a pipe sticking out of the ground right now.
Is there a way to plumb it so that the debris from the bottom does not go directly to the pump but maybe thru a skimmer basket first? On the install instructions, it shows it would bypass the skimmer and go directly to the pump, but first going thru a 3 way valve. It seems a lot of crud would go into the filter while pushing the stuff into the drain, resulting in more frequent backwashing. I have to admit I almost never have to backwash since we use a skimmer sock all the time, and the pressure really never seems to go up.
What do you all think?