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Pumps, Wells, Tanks, Controls / Need to upgrade my ancient Galv tank
« on: April 17, 2013, 08:22:08 PM »
I'm one year into a new house we bought that was built in 1971. Water is served from a well that I don't have a lot of specific info on. In 2010, there was a 1/2 HP Goulds submersible pump installed set at 300' using 1" poly. I spoke to the installer and the only extra detail they could give me was that when they shocked the well and flushed it all day, they didn't come close to running out of water. When someone is taking a shower and nothing else, the pump kicks in at what looks like 30 PSI and runs for 45sec to hit 60 PSI. During a typical shower the pump kicks in 2-3 times.
Inside the house I have a harvard mark 10 tank that is as tall as I am ~70", and the pump installer tells me it is an 80 gallon galvanized tank, likely installed in 1971. It is in need of replacement soon. I'm told I can replace the current tank with a 20-30 gallon amtrol tank which would suitably replace the current tank. The house is a 3 bed 2 bath with two adults and a child right now. If things work out, we will hopefully have a second child in the coming years. I have plans to remodel the master bath, and the wife has mentioned the possibility of adding a few shower heads in the new bathroom. As I've been reading on the topic, I came across the CSV and I would like more info, so here are my questions.
1) Using the methods for estimating demand, it seems like my current demand would be about 9-10 GPM. Should we go with an extra shower head that load could move up to somewhere around 12-15 GPM. With my current pump, can I meet that demand with the CSV? Can I meet it with the traditional pressure tank? (I'm guessing no)
2) Based on my current demand, can a CSV work for me with the recommended 4.4 Gal tank? It seems like the CSV system is limited by the output of the pump in the well, or alternatively would require a larger than 4.4 gallon tank?
Inside the house I have a harvard mark 10 tank that is as tall as I am ~70", and the pump installer tells me it is an 80 gallon galvanized tank, likely installed in 1971. It is in need of replacement soon. I'm told I can replace the current tank with a 20-30 gallon amtrol tank which would suitably replace the current tank. The house is a 3 bed 2 bath with two adults and a child right now. If things work out, we will hopefully have a second child in the coming years. I have plans to remodel the master bath, and the wife has mentioned the possibility of adding a few shower heads in the new bathroom. As I've been reading on the topic, I came across the CSV and I would like more info, so here are my questions.
1) Using the methods for estimating demand, it seems like my current demand would be about 9-10 GPM. Should we go with an extra shower head that load could move up to somewhere around 12-15 GPM. With my current pump, can I meet that demand with the CSV? Can I meet it with the traditional pressure tank? (I'm guessing no)
2) Based on my current demand, can a CSV work for me with the recommended 4.4 Gal tank? It seems like the CSV system is limited by the output of the pump in the well, or alternatively would require a larger than 4.4 gallon tank?