Pressure gauge question

nanobooboo

Bronze Supporter
Jul 20, 2019
16
Cottageville SC
I have a trap door installed in the deck and can't see the pressure gauge from the topside. I will get the glycerin gauge for sure, but wondered about using a 90 degree elbow...I want the fitting to come out of the filter, and then attach the gauge so it's facing up toward me. Will that significantly impact the accuracy? I am more inclined to view the PSI as a relative reading versus scientific reading...
 

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
43,256
Tucson, AZ
No issue doing that. In fact there was another thread discussing using long pieces of pipe to run the gauge away from the filter so it would be better read.
 

Bama Rambler

Mod Squad
TFP Expert
Bronze Supporter
LifeTime Supporter
Jun 22, 2009
23,535
SouthWest Alabama
I personally prefer stainless steel, but it really doesn't matter with these gauges. However, I recommend you get a 0-30 psi gauge instead of the usual 0-60 psi. You could also get a bottom mount gauge and wouldn't have to have the elbow.
 

Bama Rambler

Mod Squad
TFP Expert
Bronze Supporter
LifeTime Supporter
Jun 22, 2009
23,535
SouthWest Alabama
I believe you mean "back mount". 😉
Nope, I meant bottom mount. :)

If they're wanting to use an elbow to turn it up to where they can see it from the deck they most likely have a back mount now. Back mount gauges are common on sand filters which they also have. My suggestion to get a bottom mount gauge would allow them to screw it into the multiport and turn the dial up so they could see it above the deck without an elbow.
 

nanobooboo

Bronze Supporter
Jul 20, 2019
16
Cottageville SC
Great idea...I was making it more difficult than necessary! So will the dial that came on the original gauge come off and be usable on the new glycerin gauge or do I need to shop it further?
 

SPenfold

Well-known member
Aug 20, 2018
53
LI, NY
Nope, I meant bottom mount. :)

If they're wanting to use an elbow to turn it up to where they can see it from the deck they most likely have a back mount now. Back mount gauges are common on sand filters which they also have. My suggestion to get a bottom mount gauge would allow them to screw it into the multiport and turn the dial up so they could see it above the deck without an elbow.
You are correct, I didn't see sand filter.
 

Bama Rambler

Mod Squad
TFP Expert
Bronze Supporter
LifeTime Supporter
Jun 22, 2009
23,535
SouthWest Alabama
Great idea...I was making it more difficult than necessary! So will the dial that came on the original gauge come off and be usable on the new glycerin gauge or do I need to shop it further?
Assuming that you're talking about the movable ring around the face of the gauge, the new ones won't come with that, and that one won't transfer to the new gauge. You don't need it anyway, because you want to adhere to the 25% rule of backwashing rather than the 10 psi that the gauge ring is marked with. Most of us clean the filter and then write the pressure down and clean the filter when the pressure rises 25% above the clean pressure.
 
Last edited by a moderator:

nanobooboo

Bronze Supporter
Jul 20, 2019
16
Cottageville SC
Assuming that you're talking about the movable ring around the face of the gauge, the new ones won't come with that, and that one won't transfer to the new gauge. You don't need it anyway, because you want to adhere to the 25% rule of backwashing rather than the 10 psi that the gauge ring is marked with. Most of us clean the filter and then write the pressure down and clean the filter when the pressure rises 10% above the clean pressure.
[/QUOTE
 

MickWein

Member
May 30, 2017
16
Chicago/Illinois
You're saying a bottom mount gauge will work just as well in a recessed back mounted filter hole? If so, would I need an extension to clear that recess in the filter lid? And for giggles, anyone know the correct size or are the post fittings standard?
In case my info is missing: Hayward Extreme 1500 series cartridge filter 🥴 Thanks in advance.
 

duraleigh

Admin
Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
In The Industry
Apr 1, 2007
32,610
Sebring, Florida
fittings are standard.......1/4" npt.

The exception might be Intex which tries to make EVERYTHING non-standard.
 
  • Like
Reactions: MickWein