Tank Draw-down and Spec sheet
The web guy told me to make these blogs longer than 300 words. What do you say about Tank size and draw-down that would take up that much space?
I will tell you that tank size will definitely affect the life of any well system for good or bad. Good would be a two minute run time for every pump. Bad would be not nearly enough, and switches, motors and impellers failing all the time. I can tell you the latter is my biggest repair call.
Why do drillers and pump installers sell too small tanks? Cost. I myself have cringed at giving a price on a larger tank, when I knew it was an absolute necessity, knowing that the owner would go to my competitor and he may decide to play musical tanks on them. I have mostly gotten over being too shy about my price, but I am more careful to verbally and contractually warn them in advance of the price differences.
Below is the Spec sheets for some of the bladder tanks (pre-charged diaphram tanks)
CLICK HERE TO DOWNLOAD A SPEC SHEET FOR TRIDENT TANKS
This sheet clearly shows draw-down rates for our bladder tanks
Remember that a pump smaller than one horsepower needs a minimum of a one minute run time – 10 gallons per minute would need 10 gallons of draw-down.
Larger than one horsepower would require a two minute run time. 20 gallons per minute equals 40 gallons of draw-down.