Luc
Member
Hello everyone.
We are considering some changes on our domestic water system supplying our building and I would like to know your advise.
We have two large concrete storage tanks in the basement of our building which are used to store the domestic water. The tanks are fed from two wells. When the building was first built, there were two booster pumps(Hydropak 6625 from Armstrong) that took the water from the tanks to supply the building. Each pump gaved about 50GPM@61PSI. This was so noisy that we put them on standby. The booster pumps only run during peak periods(it happens only a few times a year). We now supply the building from a submersible pump in each storage tanks. We do the rotation of the storage tanks. While one tank is being used to supply the building, the other tank is being filled by the well.
The first well is 100' deep with 3000GPH. It has a 3/4 hp submersible pump of 15GPM@150' with a 11/4'' outlet.
The second well is 200' deep with 1800GPH. It has a 3/4 hp submersible pump pf 10GPM@240' with a 11/4'' outlet.
1) We would like to remove one of the storage tank. The other storage tank could be used for preheating of the water for the domestic hot water.
2) We also would like to completely remove the booster pumps and supply the building directly from a new submersible pump in each well. There building occupency varies regularly from 30 to 56 persons. With 80 GPM available from the wells would this be enough to cover a peak period?
3) We would like to keep a pressure of about 60 psi. Would two new submersible pumps(30GPM and 50GPM) be able to do this?
4) We will also have to change the piping from the wells to the building and the electrical cables feeding the pumps.
5) We already have two pressure thanks that were used for the submersible pumps in the storage tanks. We could use one pressure tank on each of the submersible pump system piping.
6) We could also use a cycle stop valve on each of the pump system. If I am not mistaking, we can set the cycle and stop valves at different pressure to start the second submersible pump when the first one cannot supply the demand.
Regards,
Luc
We are considering some changes on our domestic water system supplying our building and I would like to know your advise.
We have two large concrete storage tanks in the basement of our building which are used to store the domestic water. The tanks are fed from two wells. When the building was first built, there were two booster pumps(Hydropak 6625 from Armstrong) that took the water from the tanks to supply the building. Each pump gaved about 50GPM@61PSI. This was so noisy that we put them on standby. The booster pumps only run during peak periods(it happens only a few times a year). We now supply the building from a submersible pump in each storage tanks. We do the rotation of the storage tanks. While one tank is being used to supply the building, the other tank is being filled by the well.
The first well is 100' deep with 3000GPH. It has a 3/4 hp submersible pump of 15GPM@150' with a 11/4'' outlet.
The second well is 200' deep with 1800GPH. It has a 3/4 hp submersible pump pf 10GPM@240' with a 11/4'' outlet.
1) We would like to remove one of the storage tank. The other storage tank could be used for preheating of the water for the domestic hot water.
2) We also would like to completely remove the booster pumps and supply the building directly from a new submersible pump in each well. There building occupency varies regularly from 30 to 56 persons. With 80 GPM available from the wells would this be enough to cover a peak period?
3) We would like to keep a pressure of about 60 psi. Would two new submersible pumps(30GPM and 50GPM) be able to do this?
4) We will also have to change the piping from the wells to the building and the electrical cables feeding the pumps.
5) We already have two pressure thanks that were used for the submersible pumps in the storage tanks. We could use one pressure tank on each of the submersible pump system piping.
6) We could also use a cycle stop valve on each of the pump system. If I am not mistaking, we can set the cycle and stop valves at different pressure to start the second submersible pump when the first one cannot supply the demand.
Regards,
Luc