Thermostatic shower system 1/2" enough or need 3/4"??

hj · 11-19-2011, 06:51 AM

The name is Jado, not Jalo, but we seldom use them.

hj · 11-19-2011, 06:53 AM

If you intend to use PEX, then forget the previous statements. Then you DO need 3/4" just to have the same volume available that 1/2" copper would have given you.

**mcu** · 11-19-2011, 07:23 AM

no it's really Jalo and I will use copper

**johnfrwhipple** · 11-19-2011, 08:13 AM

http://www.jalo.ca/AWSFILES/DOCS/135...6000-00-XX.pdf

IS this your stuff?

Looks like you will need a couple of 1/2" MPT fittings and from there you pick. I would sent the valve all the water it can handle and from there the real piping begins.

Are you going to balance all the spray heads?

JW

**mcu** · 11-19-2011, 05:25 PM

It's actually http://www.jalo.ca/AWSFILES/DOCS/135...6001-00-XX.pdf

I was going to install like the diagram below

**jadnashua** · 11-19-2011, 05:35 PM

What size supply you can live with will depend somewhat on how you use it...if you open all of the valves, then your flow would try to be the sum of all devices, and 1/2" is unlikely to provide you with enough flow to provide satisfactory outputs of any of them. If you want the ability to run all at the same time with decent functional pressure, I think you need 3/4" feeding things, and that's not pex, that's copper.

**mcu** · 11-19-2011, 11:25 PM

i agree 3/4 copper to run everything at once, but as i mentionned, i will never use more than 2/3 at a time. like one other poster said my water talnk would be empty in mins and would live to enjoy more than a few mins with the wife (maybe i should go with 1/4" so I can get the longest time out of my tank)

hj · 11-20-2011, 06:37 AM

the piping to the "accessoire #2 jets de corp", (Quebec for accessory body sprays), can be piped more effectively using a sideways "H" pattern with the feed to the middle of the crossbar. Then ALL the jets will be equidistant from the feed pipe. Aesthically, I would mount the thermostatic valve lower, since it will seldom be readjusted, then install the volume controls in a horizontal or vertical line above the thermostatic valve. If the name is Jalo, rather than Jado, then I wonder if they are "knockoffs" like the watches which were called "Omego", "Rollex", or "Buloba". Names close enough to the real ones to be misunderstood if just glanced at.

**johnfrwhipple** · 11-20-2011, 09:25 AM

Originally Posted by mcu

It's actually http://www.jalo.ca/AWSFILES/DOCS/135...6001-00-XX.pdf

I was going to install like the diagram below

Not loving the piping diagram. You will have more pressure on the right wall and less on the left wall.

The body jets should be placed so they hit the area of the body you and your partner want. ie; "Privates", "Small of Back", "Shoulders", "Neck", "Back Side" etc.

If you want then to keep warm while shampooing your hair then they should be spread apart to head more of your body.

Carefull the jets don't hit the door. If they do there is a chance water will escape the shower. A deflector at the doors bottom can help here a little but ideally the jets spray does not hit the door at all.

A plumbing rig like this might even out the pressure better. Check with your plumber first.

Originally Posted by hj

...can be piped more effectively using a sideways "H" pattern with the feed to the middle of the crossbar. Then ALL the jets will be equidistant from the feed pipe.

HJ is my sketch close to what you spec'd?

**dlarrivee** · 11-20-2011, 09:33 AM

That looks even more convoluted than the first drawing.

**johnfrwhipple** · 11-20-2011, 09:41 AM

Originally Posted by dlarrivee

That looks even more convoluted than the first drawing.

How so. The water is split 50/50 to top and bottom and then is split between left and right. This way the body jets get the same pressure. You could make it even harder if you try and factor in the bends around the corner but I think this design will give more even pressure than the first spec shown.

**mcu** · 11-20-2011, 10:56 AM

HJ, I am not quite sure I understand the H way or piping it. Would it be too much to make a diagram for me real quick? The shower is 44x96 with a 12x44 bench (so in reality floor space is 44x84), but I was wondering since it's such a long shower, should I place the wand on the side wall with the two jets and the shower head on the wall with controls and two other jets. I would of loved to put the showerhead hanging from the ceiling, but above the ceiling is my attic (worried about the cold) and did not want to lower my ceiling height by making a fake ceiling for the pipes.

**johnfrwhipple** · 11-21-2011, 07:09 AM

There is another diagram on this thread showing perhaps what HJ is suggesting.

http://www.terrylove.com/forums/show...ing-Body-Jets&

hj · 11-21-2011, 04:08 PM

Nope! Draw the letter "H", turn it on its side and put a wall jet on each "end", then connect a pipe to the center of the crossbar. ALL the jets will be the same distance from the connection, although getting them ALL exactly the same is not too important. Doesn't sound too complicated to me, but then I know what I am describing. I have NEVER installed a "balancing loop" because they are more aesthetic than practical.

**johnfrwhipple** · 11-21-2011, 08:42 PM

Originally Posted by hj

Nope! Draw the letter "H", turn it on its side and put a wall jet on each "end", then connect a pipe to the center of the crossbar. ALL the jets will be the same distance from the connection, although getting them ALL exactly the same is not too important. Doesn't sound too complicated to me, but then I know what I am describing. I have NEVER installed a "balancing loop" because they are more aesthetic than practical.

Looks like a good plan. Is this right HJ?

*--------------------*
............|
............|
............|------------------ Water Line to Jets
............|
............|
*--------------------*

* = Body Jet