rkovelman Posted May 28, 2016 Report Share Posted May 28, 2016 Hi all, First post here, so appreciate that there are forums dedicated to the water life :-) I have had a pool now going on 3 years. My question is in regards to backwashing, specifically a DE filter. I have a DE filter but I do not have a backwash system. I typically have to drain it, take the cover off, and wash the filters, then reassemble. Backwashing would probably make my life easier, as the backwash cleans the filters/grids. Can you make a backwash system, or does the system come with it? If so do I just buy the backwash valve and install? I also ask because I didnt have this pool installed, we bought the home from someone who did, so I am a bit curious on this. Thanks for the help! Quote Link to comment Share on other sites More sharing options...
Bugman1400 Posted May 31, 2016 Report Share Posted May 31, 2016 You can buy a multiport valve with the backwash option in it. Then, you just have to provide a way to dispose of the water. Typically, it is routed to the same place as you do to drain the pool. With my own DE filter, when I get to around 25psi, I backwash. After that, the pressure drops back down to the normal 15psi. I can do this a few times before I have to breakdown the filter and hose off the grids. It is important to note that when you backwash a DE filter, the DE is removed and goes out with the water. So, you have to replace what is removed. Quote Link to comment Share on other sites More sharing options...
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