You have integreal stops back there. The plastic is a reminder not to cover them. You can remove the plastic, but don't forget about the stops.
hj wrote:
The prohibition "Do not install the valve upside down" ONLY applies for a tub/shower installation. In a shower only installation, I ALWAYS install it upside down. There are two good reasons for doing so;
1. the bottom port is larger than the upper one so you get maximum flow to the shower head, and
2. The capped bottom port, unless it was a "shower" or "tub" only valve, can accumulate debris and eventually stop flow to the shower head.
Kohler also recommends inverted install when combining the 304 with a transfer valve and wanting to use two items simultaneously. Here is the article. I'll be using a 304 valve with a 728 transfer. Looking at the document, I will need to invert the 304, per Install Option 2, then run tub, fixed head, and hand shower all from the 728 transfer valve. I have some questions:
Why install the valve upside down? Why not leave it alone, cap the top (shower) output and plumb from the bottom (tub) output? Wouldn't this prevent sediment from accumulating (as hj wrote above)?
Hi I know this thread been a while but I have the 304 KS na rough in valve rite-temp pressure balance one with stops and the 77585 o ring got lost on one side will this cause the valve to not work? My valve doesn't seem to turn off the water.
I'm trying to figure out how far out to mount my k-304...
I believe I have what will be considered a "Thick Wall" design.
The Finished wall will be 1/2" then a kerdi membrane (1/16?) and finally a 3/8" thick tile (not including thinset, what would that be? 3/16"?)
for a ballpark total of about 1 1/8"...
I've attached the two pictures below in the reply, but they show two different things, one with the plaster guard and one with out.
I can't seem to find concrete information as to where I should mount it with the support framing -As in how far out of the wall should everything be?
I'd hate to screw this up at this point!
Thanks in advance!
EDIT: I found a Kohler video for replacing the PBU and snagged a pic, the unit looks pretty far back... what's the correct rule of thumb? I tried to upload a pic but seems I can't, here is the video reference (1:09) that shows the depth... I would still like a preferred answer, thanks!
EDIT#2: I just reviewed this thread again, and I saw an important asterisk * beside the one picture: "Refer to the valve trim specification sheet for roughing-in dimensions". I checked the instructions for my trim (kohler T14780-4-cp) and the instructions were very generic...sigh.. here are the rough-in and install docs, but they dont't tell me the answer
Anyone have any thoughts regarding this… need help before I make a major mistake lol.The tub port does allow for more gallons per minute.
Can you sketch out what you're thinking of doing?
This is awkward, but...
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