Pmcltd
New Member
Here is a new challenge:
Two wells/pumps:
Both wells have new pumps.
A pump house that encloses:
Once the domestic water reaches the house it goes thru a pair of “Big Blue” filters, a UV Filter and a water softener.
Here are my thoughts:
Each tank is filled from the header pipe through a 1-1/4” motorized ball valve, one for each tank
Water level in each tank is controlled by float valves
Thinking may need a second float valve in tank 1 to lock-out the VS domestic water pump to prevent sucking a dry head in the event of a fire event that could draw the water level in Tank 1 below the draw point for the VS domestic water pump especially if a pumper truck is connected to the yard stand-pipe drafting from both tanks at the same time. The theory is that if everything fails (utility power and back-up generator), the pumper truck can connect to a 3” fire water connection at the house/shop and pressurize the fire sprinkler system.
Don’t want both well pumps coming on at the same time
Trying to figure out contactors/relays that control the well pumps, float valves, motorized ball valves etc.
Two wells/pumps:
- Well #1 (Primary) 10 GPM – 1 HP
- Well #2 (Secondary) 5 GPM – ½ HP
Both wells have new pumps.
A pump house that encloses:
- Two 5000 Gal water storage tanks
- Tank 1 is a primary Tank – dual purpose – domestic water and fire sprinkler water
- Tank 2 is a static storage tank for fire water
- Tank 2 is connected (3”), at the bottom, to a 6” yard fire standpipe with connection for a fire department pumper truck
- Tank 1 is connected at the bottom to the 6” line to the yard fire standpipe with a 3” pipe and double backcheck
- Tanks 1 and 2 are connected together with a 2” pipe that feeds the fire water pump. Tank 1 is connected downstream of the 3” double back-check valve.
- A 45 KW emergency generator
- A 2” fire water pump feeding the fire sprinkler system in the house/shop
- A 1-1/4” variable speed pump that feeds domestic water to the house/shop, summer kitchen and for irrigation. The draw point for the domestic water variable speed pump is at about mid height on Tank #1
Once the domestic water reaches the house it goes thru a pair of “Big Blue” filters, a UV Filter and a water softener.
Here are my thoughts:
Each tank is filled from the header pipe through a 1-1/4” motorized ball valve, one for each tank
Water level in each tank is controlled by float valves
Thinking may need a second float valve in tank 1 to lock-out the VS domestic water pump to prevent sucking a dry head in the event of a fire event that could draw the water level in Tank 1 below the draw point for the VS domestic water pump especially if a pumper truck is connected to the yard stand-pipe drafting from both tanks at the same time. The theory is that if everything fails (utility power and back-up generator), the pumper truck can connect to a 3” fire water connection at the house/shop and pressurize the fire sprinkler system.
Don’t want both well pumps coming on at the same time
Trying to figure out contactors/relays that control the well pumps, float valves, motorized ball valves etc.