Can someone suggest a good shower valve and explain pressure balance vs thermostatic
I finally had it with the Price Pfister 08 tract home cheapo valve. So I tore the drywall down behind the shower and now have full open access to valve. Wide open with no shower head it passes 4gpm. That's with a brand new cartridge. Without the cartridge, water flow is 30 gpm. So this valve somehow restricts the flow from 30 to 4 gpm.
I want to replace with a good quality valve that can do a true 8-12 gpm min. I want the shower head to limit to 2.2gpm, not the valve.
I was told to look at Grohe thermostatic valves and not pressure balanced ones. Can someone chime in and educate me please on why a thermostatic valve can do 18 gpm easy but pressure balanced are around 4-8 gpm max.
And finally, is there a gold standard shower valve that you pro's use?
Below is a picture of my attempt to increase flow by using both shower and tub outlets together to increase flow. Don't laugh at my skills, :) I'm a C-10 electrical contractor. Anyway, this didn't work.
About Toilet Rough-in Offsets
Originally Posted by Terry
In the late 19th and early 20th century rough-in offsets were not standardized. Builders settled on the 12" standard offset only after WWII when the rush to build millions of middle-class houses required that as many things be standardized as possible.
Before standardization, however, manufacturers used whatever rough-in offset they pleased. We frequently find 8", 9" 11", 15" and 16" offsets in old houses, and old time plumbers here still remember when 18" offsets were required for some early one-piece toilets.
You statement that
is incorrect, or at least incomplete.
"All new toilets come standard for a 12" rough. You[r] options are 10", 12" and 14" I have never heard of anything else. If you were to install an eight inch rough like the article suggests, you would never find a toilet to fit."
New 8" (20cm) rough-in offsets are available from Duravit and a number of other manufacturers that originate in Europe where the 20cm offset is fairly common. Further, any number of salvagers of vintage toilets have units that fit an 8" offset. So getting a toilet to fit an 8" offset is no problem.
Keep the article in context. The site is about remodeling, not building new, and we often have a call for non-standard offsets -- especially in high end houses that often used European plumbing in the late 19th and early 20th century. High-tank toilets, weird fittings and salvaged plumbing are our plumbers' daily fair, as is rebuilding fixtures that have not worked for decades. In fact, we just finished rebuilding and relining an oak cistern that is at least 100 years old. If our plumbers had only to deal with modern residential plumbing, they would probably be bored out of their mind.
Not to worry about your home. It's probably not old enough for us to work in. And, we would would not have time to work in it. We are quite busy restoring heritage and historic homes around here.
StarCraft Custom Builders
Best Shower Fixture = Dornbracht
Just to add in my two cents the best fixtures we have ever seen or worked with are made by Dornbracht - a German Company.
The designs are flawless. Worth a look if you are building high end or building a steam shower. The vapour proofing system that's included with the rough in's is where these fixtures truly shine. Each Dornbracht fixture coming with a custom Kerdi Flashing to tie it into the showers water and vapour proofing system.