Actually there is no good reason I can think of for putting 2 or more bladder tanks in series. Placing the tanks in series may cause the pump to repetitively short cyle. Placing them in parallel will work OK. I got quite a lecture on this topic from an engineer at a sumersible pump manufacturer when I was exploring alternatives for my well/water distribution system.

Placing tanks in series or parallel will not increase your pressure, just the volume you can draw before lowering the pressure to the pumps cut in pressure. A booster pump will increase your pressure IF it doesn't, over time, outrun your well's production rate. If you don't have a problem supplying the volume you are interested in but just need more pressure then the booster pupm is a good choice.

[img]/forums/images/icons/smile.gif[/img] Pat [img]/forums/images/icons/smile.gif[/img]