I bought a house with a pool equipped with a American Products Titan
Vertical Grid pressurized DE filter (Model 5662310) and no owners manual.
I have been able to figure out most things, but would like to find an online
manual somewhere to walk me through the backwash process (I am new to
I did the normal Google search, but have not been able to find a manual.
If someone out there knows the url for a manual, or has a similar filter and
would be kind enough to give me a step-by-step on how to do this, I would be
very grateful. Thank you very much.
Don't know if your filter is similar to mine, but I will share my
experiences with my DE filter, as your filter is THE MOST IMPORTANT THING on
Mine is the big two piece stainless steel kind. Has a top and a bottom.
When you pop the big ring off, you then take the top off, and you can see
the grid assembly.
Most DE setups are something like this configuration, and have access to the
inner parts for service or replacement.
Switching/opening/closing valves is usually a pretty simple thing. And
there is one very common valve that has a brass handle and a slider assembly
that is on a lot of pools. Yours may be different. Usually, just throwing
this valve will backwash the filter. BUT, you have to turn off the pump, or
it is difficult, and you get water slam that can hurt your pipe joints.
That being said, I will get to what I consider the important part.
I clean my DE filter about every four months depending on the amount of
trash that blows into the pool. When I first started, I would just throw
the backwash valve and let it run for a while. It sucks a lot of water out
of the pool which has to be replaced, affecting the stabilizer, ph, and
chlorine levels, necessitating addition of chemicals. One time, I just had
to see how good a job this backwashing was doing, so I took off the top of
the filter after backwashing. I had used about a foot deep of water in a
36,000 gallon pool, so I had run a lot of water through it. There was a
tremendous amount of DE and crud left.
So, now, I totally disassemble the filter and use a sprayer to clean off all
the DE. It still takes a lot of time, and there are a lot of nooks and
crannies to get into to get all the old DE and crud off. But when I fire it
up again, I know that the filter is TOTALLY CLEAN.
So, even if you do learn how to backwash your filter, you may want to dive
into it at a deeper level and see if what you are doing is working well or
not. I just told you about MINE. YOURS may do different, and yours might
work perfectly and flush out all the crud when you backwash it. You just
have to be sure.
Sorry I couldn't help you with the valves and such. You will figure that
out, and it's pretty simple after that. But it is important to understand
how this works, and keep tabs on how well it is working inside where you
can't see. Otherwise, you are wasting your time, wasting DE, and your
filter is not working at peak efficiency.
Thank you for your informed response. I did figure out how to get the
backflush to work -- it dropped the water pressure by about 8 psi, so it
must have removed some of the grit. I do like your idea about taking it
apart and cleaning it properly,though. I think I will try that in a month or
so. It is a newish filter, but I am curious what condition it might be in
Thank you again for you very helpful analysis.
If I hadn't taken mine apart after I flushed it, and just assumed it was
working properly, I would have been wasting money and not having clean
If you do disassemble after flushing, and find it cleans itself out good,
that is the last time you have to do it. Well, I would take it apart at
least once a year to make double sure all is right.
Wish mine worked like it is supposed to. Throwing a valve would be lots
easier than taking it apart every time.
I use a 500lb Hayward Sand filter and add a bit of DE through the skimmer as
an added clarifier.
Remember with a DE filter you NEED to replenish The DE after you
backwash/clean the filter or it becomes inefficient
Check with your local pool supply for details.
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