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Topic: Aquahot leak (Read 467 times) previous topic - next topic

Aquahot leak

Hi everyone,
I have a new leak in the Aquahot.

Is it ok to drain the coolant from the Aquahot system and still drive the coach?
Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH

Re: Aquahot leak

Reply #1 –
With the diesel and electric element switches turned OFF, drive all you want with no Aqua Hot coolant.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: Aquahot leak

Reply #2 –
Thanks Rudy,
I'll be contacting you for an appt for repairs.
Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH

Re: Aquahot leak

Reply #3 –
Hi everyone,
Just wanted to make sure this is the drain valve for the aquahot AHE 100 02S boiler fluid. Cant turn it by hand so wanted to make sure before I put a wrench on it.
Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH

Re: Aquahot leak

Reply #4 –
Main coolant tank drain, about 16 gallons
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: Aquahot leak

Reply #5 –
Thanks Rudy!
Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH

Re: Aquahot leak

Reply #6 –
When we drained ours, the old boiler fluid had quite the pungent stench, be prepared to leave the area or blame others :D
2000 / 36' / U320 / WTFE
WildEBeest / "Striving to put right what once went wrong"

Re: Aquahot leak

Reply #7 –
I was really surprised how clear the fluid was after draining a little over 15 gallons.

I had watched a few videos on YouTube and couldn't believe how black that stuff was when it was drained and was preparing for the worst.
Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH

Re: Aquahot leak

Reply #8 –
When I drained my Aqua-hot for the bulkhead rebuild the antifreeze looked like it was new.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Aquahot leak

Reply #9 –
Good luck Frank.  The color of the coolant depends on what anti-freeze/boiler fluid PO put in there I suppose.  Tap water is sure death for any iron boiler.  I posted a few times about coolant leaks and using stop leak to prolong the inevitable.  The other day it looked like something out of the old testament with steam and black vomit coming out of the exhaust pipe....it's toast.  So I just ordered a rebuilt unit from John Carrillo, and since I'm trapped in MT for work, will have to do the swap out myself and save a trip to see Rudy some other day.  Happy trails.  Woody.
2001 4010 U320 build #5865 "Bluto-d-Bus" since 09/18
2006 Honda Element ESP Toad
Full timing since 2016 in Western MT
Copilot: Sitka
1975 GMC 260 Avion: sold
 

Re: Aquahot leak

Reply #10 –
Timing is everything, as you know I was in ND not too long ago and could have lent a hand.
Frank & Daisy
NO LONGER  "looking for the perfect Foretravel
36' or less non slide preferred."  She has been found and is ours.
2003 U320 36' non slide  Unit 6103
Cummins ISM 450
Allison 4000MH