Calculating multiple expansion tanks

[cheapsx]

Can you use multiple expansion tanks in multiple locations throughout the system as long as the combination provides enough acceptance and overall volumes collectively? I am using the watts calculator that is on line, subtracting what I now have for tanks and then plan on adding a tank or tanks I need to come up with the needed totals of acceptance and overall volume. Will this work properly?

 

[2.beans]

i use multiple tanks with my system,6 total. i did this for many reasons, some for ease and also if one falls you can shut off the ball valve and keep running until you get a new one. thats if you install ball valves.

 

[heaterman]

Can you use multiple expansion tanks in multiple locations throughout the system as long as the combination provides enough acceptance and overall volumes collectively? I am using the watts calculator that is on line, subtracting what I now have for tanks and then plan on adding a tank or tanks I need to come up with the needed totals of acceptance and overall volume. Will this work properly?

Multiple tanks are OK but I would prefer to see a common point of connection for the sake of system balance and air purging.

 

[sparke]

Questions: I am about to pipe my 1000 gallon pressurized storage. I plan on teeing into the supply line going into the tank. 1. Does it matter that there is reversing flow? The supply will see reverse flow depending if I am charging or drawing. Since I am installing this as a second tank - what can be done for air elimination around the 1000 tank/expansion tank. Can I rely on the air eliminator at the original (small) expansion tank?

Thanks

 

[DaveBP]

Questions: I am about to pipe my 1000 gallon pressurized storage. I plan on teeing into the supply line going into the tank. 1. Does it matter that there is reversing flow? The supply will see reverse flow depending if I am charging or drawing. Since I am installing this as a second tank - what can be done for air elimination around the 1000 tank/expansion tank. Can I rely on the air eliminator at the original (small) expansion tank?

Make sure you have air elimination at the top highest point on your storage tank, too. You might find it to be an excellent air separator in your system.

 

[stee6043]

Questions: I am about to pipe my 1000 gallon pressurized storage. I plan on teeing into the supply line going into the tank. 1. Does it matter that there is reversing flow? The supply will see reverse flow depending if I am charging or drawing. Since I am installing this as a second tank - what can be done for air elimination around the 1000 tank/expansion tank. Can I rely on the air eliminator at the original (small) expansion tank?

Thanks

This is how I have my system plumbed, roughly. My "primary" loop goes through my tanks and my zones are fed by two manifolds I built on the lines going to and from the tanks.

As for air elimination - I struggled with this. I ended up adding a vent at a particular problem spot in my system. You can buy vents from places like pex supply without the air separator. They are super cheap and very effective. Currently I have my Taco separator with a vent installed at a high point but I also have a stand alone Taco vent near my manifolds where I tended to collect air.