Ok, so I've read quite a bit about backwashing my filter. From what I can tell, bumping the handle is a version of backwashing. I am curious if it would be ok to force water "backwards" through the filter and out of the drain as a way to backwash the fingers?
I ask this because I am having a terrible time of either algae or pollen (Our pollen counts have been astronomical this year. After a period of time without the pump running the top of the water is absolutely covered with pollen) collecting on my DE fingers and causing my pressure to raise and very little water to come through the return. I've taken the pump apart twice and manually cleaned the fingers because bumping only works for about an hour. I've even bumped and dumped the DE a couple of times, but it doesn't clean the pollen/algae off of the fingers and after adding new DE (the 4lbs the filter recommends), within a few hours, the pressure is back up on the gauge and there is very little coming out of the return.
So, to make a long story short, I want to know if I am going to cause damage to my filter by plumbing water from the output of the pump, through a diverter valve that goes back to the output of the filter and running the water backwards through the fingers. Obviously I'll open the drain on the filter to allow for the water to be washed out of the filter.
Thanks in advance!