Plumbers NZ is New Zealand's largest online plumbing, gas and drainage resource. Plumbing exam help, plumbing news, directory and free quotes.

« | Wetback to triple inlet »
Pages: [1]   Go Down

Author Topic: Wetback noise  (Read 6148 times)

0 Members and 1 Guest are viewing this topic.

Offline Jaune

  • Newbie
  • *
  • Posts: 2
  • Karma: +0/-0
  • Im new @ Plumbers NZ!
Wetback noise
« on: March 29, 2020, 12:36:56 PM »
Hi all

I have a Rinnai wet back hot water cylinder connected to a Woodsman Tarras 3 wood burner
When the burner is going full steam there is a boom noise coming from either the hot water cylinder or the pipes 
Both of these are about 2 years old as they where installed when the house was built
Now I am no expert in this field but I cant imagine that this would be normal
I have attached a photo of the sticker of the hot water cylinder
Any help or advice on this would be great
Thank you
Jaune



Linkback: https://www.plumbers.nz/q-and-a-wetbacks/61/wetback-noise/2510/
Share Post | Report to moderator   Logged

Offline Plumber

  • Administrator
  • Hero Member
  • *****
  • Posts: 736
  • Karma: +52/-2
  • ***#1 Plumber***
Re: Wetback noise
« Reply #1 on: April 01, 2020, 04:11:27 PM »
Hi Jaune,

It sounds like your wetback has a pulse valve to assist the siphon. When the valve heats up the spring is loaded, at a certain temperature there is a tipping point and the release sounds like a bang.  More details here >> http://www.pulseflow.co.nz/

Share Post | Report to moderator   Logged
Please note that the advice I am giving is only my opinion and not necessarily a fact.  Please refer to our terms and conditions.

Offline Jaune

  • Newbie
  • *
  • Posts: 2
  • Karma: +0/-0
  • Im new @ Plumbers NZ!
Re: Wetback noise
« Reply #2 on: April 01, 2020, 04:49:26 PM »
Hi Plumber

Thank you for that so i assume it is normal then and doesn't pose any danger of blowing the side of my off
 
Share Post | Report to moderator   Logged

Offline Plumber

  • Administrator
  • Hero Member
  • *****
  • Posts: 736
  • Karma: +52/-2
  • ***#1 Plumber***
Re: Wetback noise
« Reply #3 on: April 01, 2020, 05:46:08 PM »
Nothing is ever 100%. What im suggesting would be the most common reason for what you are describing. The valve should be visible behind the wetback, to be sure, light the fire and watch it to confirm. Also make sure the wetback is open vented (just to be safe).
Share Post | Report to moderator   Logged
Pages: [1]   Go Up
« | Wetback to triple inlet »

* Share Topic

Share via digg Share via facebook Share via linkedin Share via twitter

Similar Topics

  Subject / Started by Replies / Views Last post
question
Hot water causing pipes to make a loud banging noise

Started by Ladybird

2 Replies
2485 Views 		Last post August 15, 2018, 08:14:47 PM
by Ladybird
thumbup
Wetback installation guidelines / how to install a wetback

Started by Plumber

4 Replies
21494 Views 		Last post June 19, 2012, 10:23:21 PM
by integrated
xx
Wetback not circulating

Started by Wetbackwiz

2 Replies
3953 Views 		Last post August 02, 2012, 11:22:33 PM
by 07442
xx
Wetback Problem

Started by Murray Glue

13 Replies
23161 Views 		Last post June 07, 2013, 09:42:46 AM
by Plumber
 
Share this topic...
In a forum
(BBCode)
In a site/blog
(HTML)