Desjoyaux Pools Quote - DIFFERENT PLUMBING SYSTEM - HELP!

[waterbear]

tried your link and it does't work

[Poconos]

Likewise...no workee !!

[waste]

Michelle (my belle ) from what I've read, you were going with a 'more traditional' type pool; polymere or steel. Why the change? (last I read, you were wondering the differences between Kafka, Ft. Whyne, etc) As the link you posted isn't working, I'll withhold proffering my opinion, til you get a good link going. -

[larry2338]

Found their website, try this link http://www.desjoyauxusa.com/

[waste]

Larry, thanks for the link!
Michelle, I'm not going to slam something from a quick read of the specs, however - I can see problems arising from the 'all-in-one - under-the-deck' unit (accesibility comes to mind) (i'm also doubtful about the alleged benifits),. The same holds true for the 'concrete reinforced polymere walls' , unless they are installing footing tubes under them, I fear that they won't hold up to the pressure of thousands of gallons of water. The process sounds new - do you want to be a guinee pig for this type of experiment? Maybe I'm just conservative but, I would go with a more 'tried and true' pool. Again, just my $.02.

[michelle73]

Dear "Waste" (and all others)

Sorry about the link - I left off the / at the end of the URL. You are right - we are also looking at the Ft. Wayne Elite and Kafko pools (we also met with Pacific, Prestige and Regatta ) but in our thread, no one gave us any feedback that they had heard of these companies so we thought maybe we would see if you had all heard of this one. (If you have thoughts on the others, please let us know.)

Desjoyux seems to be very big overseas and from what we could tell in some of our reading, the main drain is not really neeed, it's the jets and the skimmer that do all the work - so this system seemed interesting.

The desjoyux pool walls will have sit on a ribbon of concrete and then have a 2.5' ribbon of concrete poured all the way around the walls that goes up 6"; same as the other installers have quoted. And this compnay uses rebar, wrie mesh, and fiber in all their concrete. They also back-fill with gravel. One company wants to backfill with dirt, because they say gravel holds water, can damage the piping, and pokes into the polymer walls. They pour a small amount of dirt, comact it with pressure and water, then fill more dirt, repeat comapcting, fill, repeat....then they lay the deck on top.

The desjoyux pool had a unique concept becuse there is no plumbing - and they say their pump (at low speed) pulls only 2.9 amps and has 120 GPM pull and at high speed pulls 180 GMP at only 7.8 amp draw. Doesn't a noral pump pull about 80 GPM?

Interesting concept....as for accessabitlity, the cover in the pool deck opens to the whole unit. To winterize your pool, you pull out the pump and store it in the garage or shed. That's it. And to clean the filter you pull the filter membranes out and spray with a hose (no backwashing ever) and you have to replace the membranes about every 3 to 5 years.

Thoughts?

[waterbear]

I just looked at the website and their filtration system reminds me of a hang on tank filter for an aquarium. (It more than reminds me of one....it looks almost like several I have seen and owned!) Any serious aquarist will tell you that these type of filters are not the most effecient in the world and I would think the same would apply to a pool. Even in a fish tank the most effecient filtration is achieved by a filter with a surface skimmer on one side and a return on the other side of the tank ( and also possibly a deep suction inlet in conjuction with the skimmer) Polyester filter bags will work very much like a cartridge filter(since they are made of the same material) and have exactly the same lifespan and cleaning procedure but since the surface area is much smaller they will most likely require much more frequent cleaning. My main concern would be about the circulation in the pool. These types of 'unitized' filters provide very poor circulation on aquariums and usually require either airstones or powerhead pumps in the tank to increase the circualtion of the water. I don't think you will be adding air bubblers or submersible pumps to your pool to increase the circulation so I would have concerns about this.

As far as main drains go....there are several companies that build conventional residential pools without main drains where zoning codes permit. There is a controvery as to whether they are needed or not and there is a definite safety concern with their use in residential pools. However, from everything I have read on the subject the jury is still out on whether eliminating them is a good idea or not.
Just my 2 cents.

[waste]

Michelle, I answered another of your posts before this one (yesterday), here's the link http://www.poolforum.com/pf2/showthread.php?t=5330, it covers some of the stuff also being discussed here.