Welcome to Plbg.com
Thank you to all the plumbing professionals who offer their advice and expertise

Over 700,000 strictly plumbing related posts

Welcome to Plbg.com (also known as PlumbingForum.com) where plumbing advice, education, information, help and suggestions are provided by some of the most experienced plumbers and plumbing contractors anywhere who all wish to "give back" to society. Since 1996 we have been free without popup or other invasive ads and known to be the best online STRICTLY PLUMBING advice site. If you have questions about plumbing, toilets, sinks, faucets, drains, sewers, water filters, venting, water heating, showers, pumps, and other strictly PLUMBING related issues then you've come to the right place. Please refrain from asking or discussing legal questions, or pricing, or where to find and/or purchase products, or any business issues, or for contractor referrals, or any other questions or issues not specifically related to plumbing. Keep all posts positive and absolutely no advertising. Our site is completely free, without ads or pop-ups and we don't tract you. We absolutely do not sell your personal information. We are made possible by:  

Post New
Log In
How to Show Images
Newest Subjects
 not much hot water in winter
Author: mud369 (PA)

We are a hotel with 115 showers, hot water is fine in summer but when cold outside inlet water temp drops to 40 the showers are luke warm, all showers were just replaced and it improved but not enough. Hot water is 140 out of tanks, 130 at return and recirculation system working, we have 130 at sinks but only 100 at shower, scald limiter is at max hot on brand new kohler shower valves. Anyone know how they deal with the frigid cold water supply in places like Alaska, do they heat the cold water supply

Post Reply

 Re: not much hot water in winter
Author: bernabeu (SC)

Do you have a mixing valve at the HW storage tank? Perhaps an adjustment THERE is in order?!

Post Reply

 Re: not much hot water in winter
Author: packy (MA)

should have asked before you changed the valves.
you need a thermostatic controled shower valve not a plain non scald variety.

thermostatic shower valve you set at 109 to 112 and leave it. it adjust itself.

the cartridge is temperature sensitive so it compensates for the colder water.

Post Reply

 Re: not much hot water in winter
Author: mud369 (PA)

Thanks, The building owners supplied the valves and plumber and being bean counters they used the cheapest parts and low bid

Post Reply

Please note:
  • Inappropriate messages or blatant advertising will be deleted. We cannot be held responsible for bad or inadequate advice.
  • Plbg.com has no control over external content that may be linked to from messages posted here. Please follow external links with caution.
  • Plbg.com is strictly for the exchange of plumbing related advice and NOT to ask about pricing/costs, nor where to find a product (try Google), nor how to operate or promote a business, nor for ethics (law) and the like questions.
  • Plbg.com is also not a place to ask radiant heating (try HeatingHelp.com), electrical or even general construction type questions. We are exclusively for plumbing questions.

Search for plumbing parts on our sponsor's site:

Special thanks to our sponsor:

Copyright© 2024 Plbg.com. All Rights Reserved.