[RE-wrenches] Retrofit variable speed drive to old well pump? // Franklin products

[Windy Dankoff]

Dan,

Something else I want to add - since your customer has difficult access for a service truck, consider if it’s feasible to pull and replace the pump by hand. I had a 1/2 HP AC pump on almost 200 feet of 1” PVC drop pipe. It took all strong hands on deck (two decks, if you count down in the pit and above, ground level). With 4 people, we pulled it by hand, grunting for sure. PVC schedule 80 can be flexed enough to pull it as one long tube.

Putting new pump in is much easier - air in pipe is lighter than water.

I don’ know how deep yours is set, but if it’s a 2-wire, it can’t be much deeper than that.

Windy

> I stand corrected on my advice. This Franklin document describes a MonoDrive 2W model. 2W stands for 2-wire pump! I didn’t know it existed. 
> 
> http://franklinwater.com/media/116400/225417101_m1560_sd_manual_05-13_web.pdf
> 
> Nevertheless, I would expect inferior results and would not use it to retrofit an old 2-wire pump if it may be on its last legs. However, it IS what you are asking for, the alternative to replacing the pump! It’s up to you to determine if it’s the BEST option in the short and long run.
> 
> I would run this by a very knowlegable Franklin distributor, as well as your local driller.
> 
> Keep Shining // Windy
>