If you're undertaking a tension system or strain shutoff then The solution is always Certainly. The pump has no Test valve and a single is needed to build stress. Should you have a extremely long run on the surface area then introducing 1 just above the pump is right. Inquire https://bookmarksden.com/story18130357/how-much-you-need-to-expect-you-ll-pay-for-a-good-solar-power-price-list