120 gallon whirlpool tub
Delta Multichoice R10000 valve (1/2" Pex crimp on)
6-setting Delta diverter valve
Shower head, overhead, and hand wand.
10gpm Takati tankless.
I have 3/4" Pex branching from main supply to my 2nd bath, all the way to the tub. I've had the tub in for some time now, and have simple ball valves at the end of the Pex stubbed out over the tub to test things out. The 3/4" Pex is temporarily stepped down to 1/2" Pex with valves on the end. It currently fills to the overflow in 12-14 minutes at a descent temperature. I did some research and decided to go with the universal Delta valve, which I ordered the Pex inlet version, but it is only available in 1/2" inlets. It looks like it flows around 5.5gpm, but hard to find actual specs on the Pex version of the valve. Curious if there is something I should have done differently or if it will be okay with the valve I chose, second guessing ordering that particular valve, but, I liked the trim kits and options for the valve with the ability to change it if needed in the future. If I remember right, my Takati tankless is only pushing out about 6.5gpm at best with the temp. set as it is and being colder ground water than the specs are based from. It's overkill with my shower panel in the other bath running multiple outlets, washer, dishwasher, and kitchen sink all on, but when filling the large whirlpool tub, hot water trickles from anywhere else in the house. Not a huge deal since we will only use the whirlpool every once in a while, my concern is the bottleneck from the R10000 valve and actual fill time. 5.5gpm equates to 24 minutes, do you suppose this is going to be the case once I get it installed or is it going to be worse? Should I have gone with a different rough valve??
***edit***
Well, I went ahead and purchased the 1/2" thread/sweat version of the R10000 valve as well as some 1/2" sweat to 3/4" pex fittings, eliminating the 1/2" pex fitting restriction altogether. This takes care of my tub spout worry, now to see how the mere 1.75gpm rating to the shower head will look with two heads.
Delta Multichoice R10000 valve (1/2" Pex crimp on)
6-setting Delta diverter valve
Shower head, overhead, and hand wand.
10gpm Takati tankless.
I have 3/4" Pex branching from main supply to my 2nd bath, all the way to the tub. I've had the tub in for some time now, and have simple ball valves at the end of the Pex stubbed out over the tub to test things out. The 3/4" Pex is temporarily stepped down to 1/2" Pex with valves on the end. It currently fills to the overflow in 12-14 minutes at a descent temperature. I did some research and decided to go with the universal Delta valve, which I ordered the Pex inlet version, but it is only available in 1/2" inlets. It looks like it flows around 5.5gpm, but hard to find actual specs on the Pex version of the valve. Curious if there is something I should have done differently or if it will be okay with the valve I chose, second guessing ordering that particular valve, but, I liked the trim kits and options for the valve with the ability to change it if needed in the future. If I remember right, my Takati tankless is only pushing out about 6.5gpm at best with the temp. set as it is and being colder ground water than the specs are based from. It's overkill with my shower panel in the other bath running multiple outlets, washer, dishwasher, and kitchen sink all on, but when filling the large whirlpool tub, hot water trickles from anywhere else in the house. Not a huge deal since we will only use the whirlpool every once in a while, my concern is the bottleneck from the R10000 valve and actual fill time. 5.5gpm equates to 24 minutes, do you suppose this is going to be the case once I get it installed or is it going to be worse? Should I have gone with a different rough valve??
***edit***
Well, I went ahead and purchased the 1/2" thread/sweat version of the R10000 valve as well as some 1/2" sweat to 3/4" pex fittings, eliminating the 1/2" pex fitting restriction altogether. This takes care of my tub spout worry, now to see how the mere 1.75gpm rating to the shower head will look with two heads.
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