I was going to buy this or another brand that is also a check valve but I didn't need another check valve and it's a lot cheaper. This is outstanding quality from an American company. Technically, I like the pitot tube for accurately measuring flow rates as opposed to other types. Also in the attached pictures I have added pages with instructions. Looking at them always makes me feel better before buying a product, which is why I added it here for others. Installation was easy. It took about 10 minutes. After closing all the valves and turning the pump off, I used a 5/8" drill bit to make the hole and used the clamps that came with it to clamp it. and then (top right corner of the page. On my pipe with 2" ID it was 10" before and 4" after. Pitot tube inlet holes are small so it should be installed after the filter. Alignment and alignment / plumb is important If you follow the directions you will have no problems.
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