Question about Sport & Outdoor - Others

Open Question

I have a Purex Triton Nautilus FNS DE filter. I need to get the grids out to find a leak. I removed the two long bolts - what else need to be detached/unscrewed to get the grid cap off?

Posted by on

Ad

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
  • 83 Answers

SOURCE: How do I backwash my Pentair Vertical Grid DE filter?

For instructions on backwashing and other trouble shooting, you need an Owner's Manual. You can find one online at the following link:

http://www.pentairpool.com/pdfs/FNSPlusVerticalGridDEFilterOM.pdf

The way you backwash this filter is easy once you get the hang of it!

The first thing you will do is turn off the system, change the valve position to the Backwash position. If you have a Multiport Valve, you will press down on the handle and spin it so that the knotch is pointed to BACKWASH. If you have a Slide Valve, only has two positions, up and down, you turn the handle so that the metal pin is out of the holder and move the handle in the opposite direction. You will need to turn the handle to lock the pin into position.

Once this is done, you will turn on your pump. Pentair recommends that you backwash for 1 minute, then turn off the pump.

If you have the Slide Valve, you will put it back into the FILTER position and then turn the pump back on for 1 minute. If you have the Multiport Valve, you will put it in the RINSE position and then turn the pump back on for 1 minute.

Pentair recommends that you do this cycle a total of three times, backwash/rinse, backwash/rinse, backwash/rinse. AFTER the third time, you will need to open the Air Release Valve at the top of the filter while the pump is OFF and the valve position in back on FILTER. Once this is done, turn on the pump. When you have a steady stream of water coming out of the Air Release Valve, close that up. This way you have no air in the system.

Now, you will mix your DE "Slurry" in a bucket. Depending on your model of filter, you will measure out your DE and mix with water to the consistancy of milk. **IF it is just a backwash, you will only add 80% of the original amount of DE. You only add the total 100% of DE when you completely take the filter apart and clean it out.**

You will slowly pour the slurry into the skimmer that is closest to the pump. This will allow the DE to evenly coat the grids in the filter. Wait about 5 minutes and then check the pressure gauge on the filter. Once the PSI reaches 8 to 10 PSI above this number, it is time to backwash.

Posted on Jul 09, 2009

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

How to backwash purex triton fns pool


fns sounds like cartridge have to take out and clean if no backwash on a multiport

Jan 11, 2014 | Pentair PUREX MINIMAX HEATER; THERMOSTAT,...

2 Answers

Need help to re-assemble grits on a Pentair fns 48 filter


start with the short one by where cut out is for pipe arrange then put back together see manual if you dont have manual check pentair site or send me more info ill try to help

Nov 02, 2013 | Pentair Fns Plus 48 sqft De Pool Filter...

1 Answer

I am having problem reassembling filter grits, unable to fit smaller grit


If you have the manifold upside down on the ground, the small grid fits into the second hole to the right of the big standpipe hole. That is the reason for the smaller grid, to allow room for the stand pipe.

Nov 02, 2013 | Pentair Fns Plus 48 sqft De Pool Filter...

1 Answer

I got a pool with a fns plus 60 DE filtering system thats depositing diatomaceous earth all over my pool.Took it apart cleaned the grids bought 2 new ones to replace the bad ones,put it back together...


The FNS PLUS was originally built by American Products under a different name and was absorbed into Pentair's line, recently replacing the PAC-FAB FNS (fiberglass nautilus) also absorbed by Pentair. The two filters have no common background.
The FNS PLUS has been cursed at by more pool techs than I can count. All I can say is practice helps but these are always a pain to get right. Make sure that the narrower of the elements is in the correct spot, the rest do not matter. Also check the manifold on all sides for cracks and make sure the air relief screen is set properly. I wish I had an easy solution for you, but this filter is just a pain, even for the guys that work on them every day.

Aug 23, 2013 | Pool & Spa

1 Answer

Fns plus vertical grid de filter plumbing diagram from pump


the front is the inlet from pool the top is out and goes into the filter the filter out goes to the pool returns

Dec 30, 2012 | Pentair Fns Plus 48 sqft De Pool Filter...

Not finding what you are looking for?
Sport & Outdoor - Others Logo

Related Topics:

264 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sport & Outdoor - Others Experts

Marvin
Marvin

Level 3 Expert

81400 Answers

Bill Eager

Level 3 Expert

433 Answers

Brad Brown

Level 3 Expert

17446 Answers

Are you a Sport and Outdoor - Other Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...