General > Beating a dead horse
Filtration in hot tubs
Cola:
Here is a layout of the Marquis filter system from their web site. http://www.marquisspas.com/documents/2006/Constant_Clean.pdf
It shows the main filtration pump. Regarding filter types, if a pleated filter works for car engine that will not withstand contamination, it's probably good for the tub. The "3D" HS Tri-X filter is something like a polyester (foam like) type dust filter. The actual face surface area is under 10 square feet. The fact that particles can be held on the inside of the filter as the water passes through gives for an increase in surface area, from a 3D standpoint. Large particles will stay on the surface and smaller particles will enter cells - still easily washed out - I hope. There is no doubt that HS has a great filter system but it does have its limits - just as everyone else's does.
Regarding wear and tear on the main pump. I work on machinery with pump systems on a daily basis. Pumps that run 24/6 to 24/7. These pumps are no better than the ones in the HS or Marquis tubs. They are pumping contaminated pungent coolants, corrosive oils, etc. and they are single speed - high only. Rarely a leak or failure. As for the control equipment, the relay that pulls in for the low speed is rated for 12.5 times more than the pumps low speed current. Failure rates here would be extremely low - probably a ten year average relay life from my experience. With this in mind, and yes , filtration was a concern for me, I chose the best fit for my family and myself.
Steve
East_TX_Spa:
--- Quote --- In Marquis Spas pump 1 filters with no bypass when the high speed jets are on.
--- End quote ---
What's Pump #2 doing when Pump #1 is running high speed with "no-bypass"? (This is where it always gets interesting and the mystery unfolds....) ;)
Terminator
Chas:
Ooh! Ooh! I know I know I know!
;D
DPS:
On Marquis Spas with 2 pumps, pump 2 does not circulate water through the filters. The water is being circulated through the filters on pump 1 at a high rate, sending every drop of water in the spa through the filters every 3 minutes with the jets on high speed. So, in your typical 15 minute soak, the entire volume of the spa has been through the filters 5 times. Marquis doesn't have "by pass valves". Whether pump 1 is on high speed for jets or on low speed for heating, filtration cycle, or clean up cycle, ALL of the water goes through the filters.
Steve:
I'm just curious to see whos forehead starts bleeding first from banging it against the wall? ::)
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