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Does it matter if a Jandy valve is mounted with the INLET wrong?

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Arklin K.

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May 14, 2012, 8:47:28 PM5/14/12
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In another thread, we determined I needed to replace my cracked Jandy
valve.

I have nagging questions I'm hoping a pool owner might know.

LABELS:
My pool equipment is well labeled but I don't understand the labels.
Q1: What do these blue arrows indicate to you?
http://www4.picturepush.com/photo/a/8260217/640/8260217.jpg

HORIZONTAL vs VERTICAL:
The cracked Jandy valve was mounted vertically but there is precious
little room.
Q2: Would it matter, functionally, if I mounted the new valve
horizontally?
http://www5.picturepush.com/photo/a/8260218/640/8260218.jpg

INLET vs OUTLET:
The two-port Jandy valve has one side marked INLET
http://www1.picturepush.com/photo/a/8260219/640/8260219.jpg

Q3: If I flip the cover - does that change which side is the inlet?
http://www2.picturepush.com/photo/a/8260220/640/8260220.jpg


Note: Some of the existing valves are clearly mounted with the inlet side
on the outlet. I suspect they did that so that the handles didn't clash
since they're in close proximity with others.

tra...@optonline.net

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May 14, 2012, 9:30:26 PM5/14/12
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On May 14, 8:47 pm, "Arklin K." <ark...@notmyemail.com> wrote:
> In another thread, we determined I needed to replace my cracked Jandy
> valve.
>
> I have nagging questions I'm hoping a pool owner might know.
>
> LABELS:
> My pool equipment is well labeled but I don't understand the labels.
> Q1: What do these blue arrows indicate to you?http://www4.picturepush.com/photo/a/8260217/640/8260217.jpg
>

They MIGHT indicate the "normal" position of the valve,
ie the position it's in with the pool running normally.




> HORIZONTAL vs VERTICAL:
> The cracked Jandy valve was mounted vertically but there is precious
> little room.
> Q2: Would it matter, functionally, if I mounted the new valve
> horizontally?

You can mount it in any orientation you like. Doesn't matter.





http://www5.picturepush.com/photo/a/8260218/640/8260218.jpg
>
> INLET vs OUTLET:
> The two-port Jandy valve has one side marked INLEThttp://www1.picturepush.com/photo/a/8260219/640/8260219.jpg
>
> Q3: If I flip the cover - does that change which side is the inlet?http://www2.picturepush.com/photo/a/8260220/640/8260220.jpg
>
>

I'm kind of surprised it has that marking on a simple two port
valve. I don't see how it's going to make any difference.
You could call Jandy.





Note: Some of the existing valves are clearly mounted with the inlet
side
> on the outlet. I suspect they did that so that the handles didn't clash
> since they're in close proximity with others.

And obviously they are working OK.

Oren

unread,
May 15, 2012, 12:51:08 PM5/15/12
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On Tue, 15 May 2012 00:47:28 +0000 (UTC), "Arklin K."
<ark...@notmyemail.com> wrote:

>In another thread, we determined I needed to replace my cracked Jandy
>valve.
>
>I have nagging questions I'm hoping a pool owner might know.
>
>LABELS:
>My pool equipment is well labeled but I don't understand the labels.
>Q1: What do these blue arrows indicate to you?
>http://www4.picturepush.com/photo/a/8260217/640/8260217.jpg
>

Kind or hard to tell. They can indicate the water flow direction or
indicate the direction the valve diffuser is facing.

>HORIZONTAL vs VERTICAL:
>The cracked Jandy valve was mounted vertically but there is precious
>little room.
>Q2: Would it matter, functionally, if I mounted the new valve
>horizontally?
>http://www5.picturepush.com/photo/a/8260218/640/8260218.jpg
>

Not as long as they work?

>INLET vs OUTLET:
>The two-port Jandy valve has one side marked INLET
>http://www1.picturepush.com/photo/a/8260219/640/8260219.jpg
>
>Q3: If I flip the cover - does that change which side is the inlet?
>http://www2.picturepush.com/photo/a/8260220/640/8260220.jpg
>
>

Don't really know. Does flipping the cover change to diffuser
direction? (I'm getting lost here<g>)

>Note: Some of the existing valves are clearly mounted with the inlet side
>on the outlet. I suspect they did that so that the handles didn't clash
>since they're in close proximity with others.

Fix the one that broke and have a beverage!

gonjah

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May 15, 2012, 12:53:39 PM5/15/12
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Needs more valves!

--
X-No-Archive: Yes

Oren

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May 15, 2012, 3:15:40 PM5/15/12
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On Tue, 15 May 2012 11:53:39 -0500, gonjah <gon...@wasted.net> wrote:

>Needs more valves!

More cow bell.

<http://www.youtube.com/watch?v=BjsUf_oIgp0>

Arklin K.

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May 15, 2012, 3:36:05 PM5/15/12
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On Tue, 15 May 2012 09:51:08 -0700, Oren wrote:

> Don't really know. Does flipping the cover change to diffuser
> direction? (I'm getting lost here<g>)

That's what is confusing to me.

I called the Jandy (aka Zodiac) people at 800-822-7933.

The first line technician said a few things ... but I'm not sure she knew
what she was doing.

1. She said the INLET side is the pressure side (i.e., closest to the
pump for outgoing fluids; closest to the pool for incoming fluids).

2. She said it will work both ways - but it was designed to work with the
incoming water pushing against the curved gate valve to keep it closed.
If you hook it up backward, it may leak over time, she said, because the
incoming water is pushing the gate into the housing instead of pushing
the gate against the housing.

3. She said it will work better mounted horizontally; it will work
vertically, but may leak over time.

4. If I elect to install it backwards, she suggested I flip the cap to
show which side is the INLET accurately.

This fourth suggestion doesn't seem to make any 'mechanical' difference
since the top is just a top. It doesn't actually change anything with the
valve itself. All it does is change where the name "INLET" is stamped so
I don't really see the value in doing this step.

Do you?

Arklin K.

unread,
May 15, 2012, 3:41:02 PM5/15/12
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On Tue, 15 May 2012 11:53:39 -0500, gonjah wrote:

> Needs more valves!

It's amazing that there are about 20 valves in this single pool setup.

Each of the three pumps has one input valve and three output valves (one
each for two zones, and one to direct the flow to each of the zones).

So that's 12 valves for just the three pumps.

Then the solar heater and gas heater have their sets of valves which adds
to the mix.

Sheesh!

Arklin K.

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May 21, 2012, 5:29:14 PM5/21/12
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UPDATE:

The pool is filling (I decided NOT to wash it this time because the
plaster was sitting dry for far too long).

Next time I'll be ready to wash it now that I know the gray is the
plaster, the pretty blue is a copper stain, and the scratchy white is
calcium grains due to lousy pool chemistry.

Maybe with better pool chemistry, I can actually get rid of the sandy
white calcium and pretty blue stain over time without having to re-drain
the pool!

Here's a shot of the pool filling up ...
http://www4.picturepush.com/photo/a/8313067/640/8313067.jpg

Here's one of the repaired pipes with the new Jandy valve:
http://www5.picturepush.com/photo/a/8313068/640/8313068.jpg

And, here's a closeup of the re-routing of the pipes:
http://www4.picturepush.com/photo/a/8313072/640/8313072.jpg

I'm not a plumber - I just DIY with your help ... so if you have any
final advice on the repair ... let me know so I learn for the 'next' time.

I can't start it up yet (water needs to be at the level of the skimmers)
so I won't know if the screw-tight coupling will hold the pressure (50
psi?) coming out of the cleaner pump or not.

Arklin K.

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May 21, 2012, 10:48:14 PM5/21/12
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Here is a view of the Jandy never-lube two-port valve with the top
rotated correctly for the inlet side:
http://www5.picturepush.com/photo/a/8313593/640/8313593.jpg

And, here is the view with the top rotated incorrectly for the inlet side:
http://www1.picturepush.com/photo/a/8313594/640/8313594.jpg

In summary, these appear to be the things I learned about the Jandy valve:
a) The valve is guarranteed for life (I simply showed them a picture of
the crack and they sent a new one)
b) It doesn't seem to matter if you get the smaller valve (where the pipe
fits OVER the ends) or the larger one (where the pipe fits INSIDE the
ends)
c) It doesn't matter much if it's horizontal or vertical but Jandy (aka
Zodiac) prefers the vertical position for leakage prevention
d) It won't matter much if it's hooked up wrong - but - the INLET side
should be facing the pressure side of the pipes
e) If you do need to flip the valve, Jandy suggests you also flip the top
cap and inner valve so that the INLET is maintained
f) The proper orientation is for the pressure side to face the concave
end of the flap and the rubber sealed convex side to face the pool

Oren

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May 22, 2012, 12:40:55 PM5/22/12
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On Tue, 22 May 2012 02:48:14 +0000 (UTC), "Arklin K."
<ark...@notmyemail.com> wrote:

>c) It doesn't matter much if it's horizontal or vertical but Jandy (aka
>Zodiac) prefers the vertical position for leakage prevention

<chuckle> I have a vertical and a horizontal J-valve. The vertical
valve is the ONLY one that has ever leaked. O-rings wear faster.

Disclaimer: It has a low voltage valve actuator - more use (solar
panel valve) so I expect the leaks....

Arklin K.

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May 22, 2012, 9:26:34 PM5/22/12
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On Tue, 22 May 2012 09:40:55 -0700, Oren wrote:

> <chuckle> I have a vertical and a horizontal J-valve. The vertical
> valve is the ONLY one that has ever leaked. O-rings wear faster

Actually, I mispoke. So your experience is what Jandy suggested would
happen. They prefer HORIZONTAL over vertical (it was my mistake in not
proofreading my summary!).

Oren

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May 23, 2012, 3:12:33 PM5/23/12
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Good job on the replacement valve. Looked good.

Now?

Why did this valve crack? Was it freeze or it just gave up the ghost?

Arklin K.

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May 23, 2012, 3:48:42 PM5/23/12
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On Wed, 23 May 2012 12:12:33 -0700, Oren wrote:

> Why did this valve crack? Was it freeze or it just gave up the ghost?

It was always leaking from the day I owned the pool.

I only removed it because someone suggested I fix all leaks while the
pool was empty for cleaning.

I suspect it cracked when the pump was running into it with the valve
closed; but I don't know how it cracked.
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