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Topic: Aqua Hot coolant (Read 532 times) previous topic - next topic

Aqua Hot coolant

I have changed the coolant on the engine and generator even though they both looked and tested good because of unknown age of the red OAT coolant. Is there any practical reason to do the same for the A.H. ? The freeze point shows just around a 50/50 mixture of the red OAT. There is no cavitation issues but maybe something I can't think of.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Aqua Hot coolant

Reply #1 –
Hi Craneman,

If your AH is older hand therefore has the coolant coils around the outside of the tank, then you can use the Shell or any other coolant you are using elsewhere. But in the newer AH  units the coils are inside the AH tank where the potable water is, then you should not use non-potable coolant. I will leave it to others to suggest the brand and type because mine is filled with Shell Extended Life coolant. Perhaps Rudy will chime in with the answer.
Jim Frerichs
2002 U320 42'

Re: Aqua Hot coolant

Reply #2 –
Quote from: Jim Frerichs –
Hi Craneman,

If your AH is older hand therefore has the coolant coils around the outside of the tank, then you can use the Shell or any other coolant you are using elsewhere. But in the newer AH  units the coils are inside the AH tank where the potable water is, then you should not use non-potable coolant. I will leave it to others to suggest the brand and type because mine is filled with Shell Extended Life coolant. Perhaps Rudy will chime in with the answer.
The coils are on the outside and it was filled with Texaco extended life originally, the only thing I can be certain of is it is red and is good for -34 freezing
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Aqua Hot coolant

Reply #3 –
With the extended life coolant I think you need 4-way test strips to determine your coolants health.
Good luck finding one or two...................you may have to buy 50 and they have a short shelf life.

Re: Aqua Hot coolant

Reply #4 –
The Aqua Hot coolant does not interact with much as does engine coolant.  Therefore is lasts a very long time.  It needs to keep its Ph at the level when it was installed.  Roger Berke knows the correct number but I do not.  My guess is near neutral which is close to 7 I think.

So most likely you do not need to change unless you just want to.
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: Aqua Hot coolant

Reply #5 –
Quote from: Rudy –
The Aqua Hot coolant does not interact with much as does engine coolant.  Therefore is lasts a very long time.  It needs to keep its Ph at the level when it was installed.  Roger Berke knows the correct number but I do not.  My guess is near neutral which is close to 7 I think.

So most likely you do not need to change unless you just want to.

Thanks for the information.
I will get the Ph number required and see where I am at. I bought some of the extender that is required after 300,000 miles or 3 years I don't know if it is for corrosion protection or some other properties. I have searched the net for a reason for the extender to no avail.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Aqua Hot coolant

Reply #6 –
Info on pH and test strips.  Excellent service and information.

Coolant Test Strip Kit
2019 Pleasure Way Lexor
 

Re: Aqua Hot coolant

Reply #7 –
Quote from: Rick & Robyn –
Info on pH and test strips.  Excellent service and information.

Coolant Test Strip Kit
I am a member there and have the strips. Great place to learn all about Aqua-Hot
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean