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Posted by BobK207 on June 5, 2006, 4:28 pm
greilly@zoll.com wrote:
> I have Triton Nautilus DE Filter. When I "recharged" it by pouring DE
> into skimmer I saw cloudy water being pumped back into pool for a few
> minutes then it stopped.
>
> The water is clear and chemicals all balanced. I can see the bottom of
> the deep end.
>
> So I decided to vaccuum and again I see clouds pumping into pool as if
> not filtering these particles.
>
> Next I open up the filter because I was convinced something wasn't
> right. I gently hosed off the elements and checked them for holes or
> rips. They check out fine. So I then made sure that each element was
> seated and put it all back together.
>
> Once again I mix up 6 coffee cans full of DE into a pail, add water to
> make a slurry and poured it into the skimmer. And again I see clouds
> begin jetting from the inlets but they stop after a minute.
>
> Hours later the pool is again clear and I can see the bottom but the
> particles from the clouds have accumulated on the bottom.
>
> 1. Is it normal to see clouds jetting from inlets while adding DE into
> the skimmer?
> 2. Will Clarifier clump these particles into size that will catch them
> in the filter?
> 3. Or Is it possible there is a tear in the elements that I could not
> find?
> 4. Has this happened to anyone else?
> 5. If so, what did you learn?
>
> I am afraid that if I vaccuum the stuff will just circulate back into
> the pool like an endless cycle.
>
> Any and all DE Filter owners your comments are welcome!!! Please Help!
> Thank you!
I do not currently own a home wil a pool or a Spa (yahoo!) but I have
YEARS of experience owning / working them.
First of all, let me say, you are doing all the right things.
The mesh size of the nylon fabric on the filter grids will allow "some"
DE to pass until the DE builds up on the grids to form the filtering
layer
take a look at http://www.poolandspa.com/page799.htm
typically clarifiers / flocculating agents are not needed in DE systems
(we never used them). Spas with cartirdge filters are another story,
used them all the time to good effect.
When a DE filter is recharged correctly & settles down, you will get no
recirculating particles upon vacuuming.
Cloudy water from the return lines means particles getting thru the
filter; (damaged mesh, hole, seam failure, leak at junction with
filter tree, ???)
but you looked for that, so.....I don't know?????
could also be poor DE distribtuon over the filter grids, but you're
doing it correctly by premixing the DE.
we used to cheat & just dump DE in the skimmer & depend on the pump to
mix it :)
we gave the filter a couple turns to distribute the DE & everything was
fine
some how stuff is getting by your filter & IMO a clarifier is not the
answer; you've got some sort of internal leak path.
Maybe at the grid tree / internal plumbing; grid plumbing to tank
receiver? O-ring?
let us know how it all works out
cheers
Bob
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