Replies

1. 
   collarandhames | Mar 25, 2009 06:39am | #1

   can I self bump?  Any one have opinions on de-scaling?  They say it should be done yearly!  So this thread has relevence to anyone with a tankless.

   Thanks ,, dave

    

    

1. 
   jmagill | Mar 25, 2009 03:39pm | #2

   I have the kit and have used it. Works well. I am told that a solution on vinagar works well also.

   That said, our heater lets us know when it needs to be done with an error code on the remote control. We have not done it for the three years since we put in a water softner.

1. 
   collarandhames | Mar 25, 2009 05:42pm | #3

   Are you on city water? 

1. 
   jmagill | Mar 25, 2009 05:55pm | #4

   No, well water and very hard.

2. 
   davidmeiland | Mar 25, 2009 05:59pm | #5

   Seems like you could cobble something together using a small pump (tile saw? sump?) and some common plumbing fittings. Believe me, they do not manufacture the pump sold with that kit specifically for that purpose, it is generally for another use and does not cost $165. My plumber made a little rig for descaling tankless heaters using a salvaged pump and some clear tubing, all it needs to do is move a few GPM thru the machine.

1. 
   jmagill | Mar 25, 2009 06:04pm | #6

   I agree, I think an aquarium pump would work well( sized right).

2. 
   collarandhames | Mar 25, 2009 10:05pm | #7

   I wonder how many gpm?

   I'm definately gonna cobble one up.  More fun than buying the kit anyways!

   d

     

1. 
   davidmeiland | Mar 25, 2009 11:35pm | #8

   Might talk to the WH manufacturer and see what they recommend.

3. 
   collarandhames | Apr 05, 2009 08:08am | #9

   I see now, the depot has several candidates for the pump,, 70-80  buck range.  wonder about using the dehumidifyer descaler for my instant hot water heater descaleing.

    

    

1. 
   collarandhames | Apr 08, 2009 06:38am | #12

   vinegar?? 

4. 
   shelternerd | Apr 05, 2009 08:49am | #10

   I use a regular Sump pump, same as I use for pumping out footings, run a gallon of white vinegar out of it through the DHW for a half hour or so generally using the pop-off valve to dump it into a five gallon bucket and pumping back out of the bucket into the DHW with the gas turned off.

   Rinse the pump well before and after use of course.

   ------------------

   "You cannot work hard enough to make up for a sloppy estimate."

1. 
   davidmeiland | Apr 05, 2009 06:22pm | #11

   That's what I've heard... a couple gallons of white vingar in a 5-gal bucket, let it cycle thru for a couple of hours.