[Diesel-RVs] Re: House WATER PUMPS

Not sure what your point is, Chuck. I'm not arguing with you about Shurflo failures and I AGREED that back pressure is a problem that Shurflo had to deal with. The only point I was trying to make is that the air head in the tank that was alluded to in your earlier post neither causes nor alleviates back pressure from the hot water tank - the back pressure is there just the same whether there is a air head or not. The same would apply to the air head in an accumulator, which is probably why they don't recommend that either.

Am not trying to be argumentative - just clarifying the effect of an air head in the system.

> Gary,
> Shurflo warranty's their high end Smart Sensor pumps for 3 years. They were
> experiencing a excessive failure rate of damage to the internal pump from
> back flow pressure. They do not recommend the need for using a accumulator
> tank with that pump. Their studies and testings found that that the the pumps
> that failed came off RV's with hot water heaters as opposed to RV's that were
> equipped with Aqua/Hydro hot systems. Because of replacing pumps under
> warranty, Shurflo had to either quit making the Smart Sensor pumps or correct
> the situation be redesign. They chose the latter. I had several discussions
> withn their engineers on the phone and at the last FMCA International rally.
> That is their answer.
> Therefore it appears that you are shooting from the hip trying to make your
> point. Chuck B

Gary
--
Gary & Nancy Brinck
2004 American Tradition 40V
2007 GMC Acadia

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