Filter gauge - what should it read when off?

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steveb21

steveb21

Well-known member
Mar 6, 2017
199
United Kingdom, England.
#3
Right, looks like its faulty then.

Ive taken it off.... still showing 0.3. Will get a replacement.

On another note, what should my reading go up to once i start the filtration? As mentioned its a dirty green pool at the moment.
 

duraleigh

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Apr 1, 2007
31,395
Sebring, Florida
#4
what should my reading go up to once i start the filtration?
Depends entirely on how much "junk" is captured by your filter. The psi may be somewhere between 8-16 when the filter is clean but steadily increasing as the filter gets dirtier. Backwash when that pressure rises by 25% over the clean pressure.
 
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steveb21

steveb21

Well-known member
Mar 6, 2017
199
United Kingdom, England.
#5
OK, if my gauge is reading 4psi when off and then 15 psi on ... so a ON PSI of 11, that seems OK yes?

If it increases to an extra 4psi ... i should backwash filter?

Just thinking of starting the filter with the current gauge and adding on the difference.
 

mas985

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May 3, 2007
12,292
Pleasanton, CA
#7
Clearing out a messy pool, when i switched pump and filter on to 'filter' mode, the reading shot up from

0.3 bar off
1 bar on

4 psi off
15 psi on
Is the equipment installed in the basement below the pool? If so, 4 PSI when off may not be that far off of reality. That would be about 9' below water level which is the equivalent of one story below water level.
 
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steveb21

steveb21

Well-known member
Mar 6, 2017
199
United Kingdom, England.
#8
That "could" be the case, or the gauge is completely whack. You will want to replace as quick as possible. Maybe even consider not starting the slam until it is replaced.
I most defo will not be starting the slam untill the gauge is replaced. Was thinking to start the system with it just to make sure everything is working as it should. Once i have filtered it for 30 mins, i will redo my taylor k2006 test for more up to date/accurate readings.

Sound like a good idea?
 

mas985

TFP Expert
LifeTime Supporter
May 3, 2007
12,292
Pleasanton, CA
#9
Is the equipment installed in the basement below the pool? If so, 4 PSI when off may not be that far off of reality. That would be about 9' below water level which is the equivalent of one story below water level.
In case you missed this question because we posted at the same time.