9300 Pressure system [RE-wrenches]

[Windy Dankoff, Dankoff Solar]

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Hey Nick,

The ETAPUMP Mini would be MUCH better in long run as you seem to 
acknowledge, but Shurflo sub can be used, as long as its limitations 
are clearly understood by the customer (slow recharge of pressure tank, 
etc.).

I wrote an article called USING A DC SUBMERSIBLE PUMP IN A DOMESTIC 
WATER SYSTEM. It's in 2 parts, in Home Power #38 and 39. I detailed the 
whole situation in that article.

Windy




> Greetings Fellow Wrenches,
>  I am aware that the Shurflo 9300 is not designed for pressure 
> applications but I seem to recall hearing of success stories in the 
> past. Not sure how long the success has lasted so I'm looking for any 
> experience. Scrolling the manual results in no mention of it either 
> way. This is not a typical design configuration for us but we have a 
> customer that has standing water at 15' and already has possession of 
> the pump. With the 15' of lift and 40 PSI the head calculates to half 
> of what the pump is able to lift/ pressurize. Convincing him to go 
> with a ETA Mini has been unsuccessful due to his finances and the 
> Flowlight suspended in the well trick is not possible with a 6" well 
> casing at 8000' above sea level (sort of risky as well). I seem to 
> recall the problem pertaining to the constant pressure on the pump 
> being the main problem and thought that may be solved with a check 
> valve? At the same time that does not make a lot of sense since the 
> water line on my system still has water in it below 170' of drop even 
> a week after pumping. I'm waiting a call from Shurflo next week but 
> the woman I spoke to there briefly thought that this application would 
> work just fine, just looking for confirmation before I proceed with 
> this design.
>
>  Any experiences?
>
> Thanks and have a great weekend, Nick

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