You are here:

Plumbing in the Home/Shower/Bath Leaks - Symmons Temptrol II


I have this issue in both my bathrooms. We have the Temptrol II for the shower and bath but water pours from the shower when the water is filling up the bath. In one you could take a shower without pulling up the diverter. Please tell me how to fix this. I have changed the seals on both.


Hi Sandy,
Water flow always takes the path of least resistance. The diverter of the spout blocks the water flow there so it goes up to the shower head instead.

These valves do not have an internal diverter so the problem probably lies with the diverter on the spout.  I would test this by removing (unscrewing) the diverter and replacing it with a 6" pipe nipple (if the nipple comes out with the spout). If the nipple stays connected to the piping, just proceed.  

Turn on the water and see if the problem still exists with only the nipple and no spout.  If not, block the end of the nipple with your finger and see if the shower works properly.  This test should point you at the problem area.  

If the shower still runs with only an open 1/2" nipple, the problem might be with a restricted or kinked supply pipe inside the wall that is feeding the spout.
Good Luck,

Plumbing in the Home

All Answers

Answers by Expert:

Ask Experts


Dana Bostick


Pretty much any residential plumbing questions. For "item specific" details such as a specific model of fixture, I will need to research and there may not be any useful information available. Note: I live and work in Southern California. We do not, as a rule, use hot water or steam heating systems, oil fired boilers or private water wells so my knowledge in those areas is pretty limited. There are others here on AllExerts that can probably answer those questions better.


Retired, Licensed General Contractor with Plumbing license. Active Home Inspector, Litigation Consultant and Infrared Thermographer, Online Marketing specialist.

Publications "Rain Maker" as "Inspector Dana", about making money online.

30+ years in the building trades, Licensed General Contractor (Retired), Certified Infrared Thermographer Internet Entrepreneur, Amazon & eBay Merchant (deals-by-dana)

Awards and Honors
Listed FHA Fee Inspector, FHA 203(k)Consultant, HUD Mobile Home Inspector

Past/Present Clients
Home buyers, sellers and owners, Investors, Commercial roofing companies (infrared roof scans for moisture intrusion, Litigation Consulting for "Slumlord" laws in SoCal

©2017 All rights reserved.