Entran & cleaning

kevin coppinger_4

have been servicing for a few years has 2 small zones of radiant heat both in entran 3, one a staple up and one in a slab. I had to do some work on one of the zones and drained of some very nasty water...a lot of particalate rubber.I worry about the long term problems associated w/ the heatway mess....what chemical treatment set up should I be looking at? I had at one time added glycol and after 1 year removed it due to the whole service issue w/ glycolic acid...any thoughts...kpc

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hr

That's not uncommon

Wonder if the system was ever flushed and cleaned when installed. This generally removes that type of crud.

I'd suggest a good hydronic cleaner, run at temperature for a few days. Then an inhibitor to protect those newly cleaned ferrous surfaces.

Make sure it is not leaking slowly somewhere and taking on fresh water.

Here is a sample from a 9 year old E3 system I have been reworking.

Collect a flush sample, allow the crud to settle and hold a magnet to it. If it attracts to the magnet, you are seeing your ferrous components! The rest of this feels and dries like mud, or clay. I'm not sure exaxtly what the make up is.

I have sent samples to various labs and get back vague info with wording "not unlike" and "possibly" No real hard data

Regardless a flush will remove it and hopefully the inhibitor chemicals will prevent, or at least "lock it into solution" It really hampers mix valve operation, causing them to stick in one position.

hot rod

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Mike T., Swampeast MO

\"Not likely\" and \"possibly\"

what?

Just curious.

Boilerpro_3

As I understand it

The problem with E-3 was that the tubing was extremely inconsistant in that there were areas where the amount of clay filler in the tubing was extremely high and in other areas the rubber content was really high. What you may have there is probably the clay filler. This fiasco killed Heatway and I believe Goodyear is now facing millions of dollars of lawsuits in many, many states. I believe we have only seen the tip of the iceburg in regard to litigation on this problem. It will be interesting for our children to see the outcome, since I am sure it will be draggedout for decades.

Boilerpro

George_10

Was that Entran 2 or 3 or both?

I am familiar with the law suit, but I thought it only mentioned Entran 2. As far as a cleaner and a treatment product, we have both of these and they will do exactly what HR is talking about. I would suggest that you get a signed statement from the homeowner that the tubing may be in trouble and you are just trying to save a bad situation.
I certainly would not do anything without it as you could open the way to being responsible.

Our cleaner and treatment products are safe to use in modern hydronic systems and they were specifically formulated for use in a closed loop hydronic situation.

You can read/print all of the benefits and tech info from our web site, www.rhomarwater.com
They are listed under hydronic products.
Call me if you have questions 800-543-5975

Boilerpro_3

now that you mention it,

I bet it was only 2. The only problem tubing, as i understand it, was that manufactured by Goodyear. The previous tubing and latter tubing was made by Dayco,I believe, and this tubing has not been problematic. I installed entran delta on my first radint job. There is no matching the speed of installation in underfloor along with good output.

Boilerpro