How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Plumberpro Your Own Question

Plumberpro
Plumberpro, Plumber
Category: Plumbing
Satisfied Customers: 634
Experience:  Heating and plumbing answers. 20 years experience
77408428
Type Your Plumbing Question Here...
Plumberpro is online now

I have a twin pump for my shower, hot t'd off my immersion

Resolved Question:

I have a twin pump for my shower, hot t'd off my immersion tank; cold off the tank in the loft (ie positive head installation). The 'anti-vibration' coupler that connects the hot input pipe to the pump has broken and needs replacing. However, there is no isolation valve between the immersion tank and the coupler. The coupler has an integrated isolation valve, but as it is the coupler itself that I need to replace I can't work out how to shut off the water. I expected that there would be valve on the cold water inlet to the bottom of the tank which I could use to shut off the supply to the tank, then drain it out. However, I have not been able to find it if there is. I have some sort of 'T' hot/cold water mixer set up to drive the input into the tank from my gas fired condsening boiler. There are a total of 3 tap valves in and around this system, and even having turned them all off, the hot tap continues to run (albeit cold after a while). So my overall question is how do I fit the new coupler on the hot pipe (input) to the pump? I presume the key is working out how to stop water coming out of the immersion tank - is it? If so, how?!
Submitted: 7 months ago.
Category: Plumbing
Expert:  Plumberpro replied 7 months ago.

Hi, there should be a valve on the incoming pipe from tank to hot water tank.if not you will have to turn off the mains supply to the cold water tank by using the stopcock or ty8ng up the ballvalve arm so the water stops, tben run hot and co!d bath taps till the tank is empty then you cannot kit hen tap. You can then change the pump fitting. Use an old towel to collect any water that may be left in that small section

Customer: replied 7 months ago.
Thanks. So if I turn of the supply into the feeder tank in the attic, then all I have to do is run out the taps to drain the system? What about the supply from the boiler? Don't I have to isolate that as well? The thermal tank appears to have 2 inputs, one right at the bottom from the cold water tank, and one a foot or so further up that appears to be fed from the boiler. See attached photo. Thanks
Customer: replied 7 months ago.
Hi, one further question - how do I remove the broken 'push on' connect from the copper pipe? thanks
Expert:  Plumberpro replied 7 months ago.

Hi, yes just drain the tank by running the taps. To get off the push fit connector use a spanner/adjustable spanner the same width as the pipe and push up against the grab ring towards the fit To g ,pushing and turning the spanner in a circle. This should free the pipe from the push fit fitting.

Plumberpro, Plumber
Category: Plumbing
Satisfied Customers: 634
Experience: Heating and plumbing answers. 20 years experience
Plumberpro and other Plumbing Specialists are ready to help you

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy
< Previous | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
 
 
 

Meet The Experts:

 
 
 
  • theplumber717

    theplumber717

    Plumber

    Satisfied Customers:

    516
    Lic plumbing and heating contractor, 28 years exp
< Previous | Next >
  • http://ww2.justanswer.com/uploads/TH/theplumber717/2011-11-24_34039_DSCF7012.64x64.JPG theplumber717's Avatar

    theplumber717

    Plumber

    Satisfied Customers:

    516
    Lic plumbing and heating contractor, 28 years exp
  • http://ww2.justanswer.com/uploads/PL/Plumberpro/2014-6-23_6520_image.64x64.jpg Plumberpro's Avatar

    Plumberpro

    Plumber

    Satisfied Customers:

    202
    Heating and plumbing answers. 20 years experience
  • http://ww2.justanswer.com/uploads/BI/billyjr1961/2013-9-27_11122_ATT1351123267229photo.64x64.JPG Billy's Avatar

    Billy

    Technician

    Satisfied Customers:

    206
    Mechanical Contractor
  • /img/opt/shirt.png Brian's Avatar

    Brian

    Plumber

    Satisfied Customers:

    47
    16 yrs. experience as plumber, including full bathroom and kitchen installations.
  • http://ww2.justanswer.com/uploads/MA/MarkAYng/2011-1-15_16358_Markcameo2008b.64x64.jpg MarkAYng's Avatar

    MarkAYng

    Handyman

    Satisfied Customers:

    0
    Knowledgeable in home, electrical and small appliance repair.
  • http://ww2.justanswer.com/uploads/AS/AssuredElectrical/2011-9-13_221243_me.64x64.gif AssuredElectrical's Avatar

    AssuredElectrical

    Home Improvement Enthusiast

    Satisfied Customers:

    332
    Electrical contractor's license
 
 
 

Related Plumbing Questions