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Great price. Save some big bucks like others. We had a 19 year old fnsp60 with a crack in the base. Whoever said that if you fix a crack in a pool filter just buys you time, they were correct. I fixed a 1/4" crack in our old one with marine epoxy. 2 weeks later it split to about an inch and started leaking badly - then I installed more epoxy and put some of that wonder tape over it. Each time, I repaired it from the inside. The 2nd patch lasted about a week and I had a 6 inch crack on the base and flooded 1/3 of my backyard. This one is really nice. My old one had fiberglass flakes so you had to have gloves on any time you handled it. The new one doesn't have the annoying fiberglass flakes that can get into your skin. All I did to replace this was to unscrew the 2 joints going into the old filter. I luckily had one of those "Jaw" type of oil filter wrenches and it fit perfectly over the union mount to unscrew it to get the old one out, and screw it back into the new filter. The new one lined up exactly at the same height as my old one so all I had to do was to slide it into place and screw the unions back on. I used plumbers tape at all joints, including the pressure relief valve and pressure valve. I screwed the pressure gauge into the pressure relief valve, then screwed the pressure relief valve on to the upper cover. To adjust the angle of the face of the gauge, I held onto the valve and unscrewed the gauge a little until I could easily see the gauge (instead of the gauge facing the house). I did make a mistake, though, and didn't replace to big O-rings in the unions so my lower union is now leaking a bit - but that's my fault for being lazy. Just mentioning that so you don't make the same mistake as I. I was a little intimated before I did this, but I'd removed the top from my old one (DE Leaks, Replaced the entire grid assembly, fixing the cracks) so I knew there wasn't very much to this filter in terms of complexity or number of pieces and parts. It's 80 pounds and bulky, so I did have to get help from my wife and daughter to lift it over the pipes into the final location of the filter. By the way, I ordered this on a Wednesday. Amazon said it'd be there Monday, but it actually arrived early on Friday, so it took less than 2 days to arrive after I ordered it. Great price. Save some big bucks like others. We had a 19 year old fnsp60 with a crack in the base. Whoever said that if you fix a crack in a pool filter just buys you time, they were correct. I fixed a 1/4" crack in our old one with marine epoxy. 2 weeks later it split to about an inch and started leaking badly - then I installed more epoxy and put some of that wonder tape over it. Each time, I repaired it from the inside. The 2nd patch lasted about a week and I had a 6 inch crack on the base and flooded 1/3 of my backyard. This one is really nice. My old one had fiberglass flakes so you had to have gloves on any time you handled it. The new one doesn't have the annoying fiberglass flakes that can get into your skin. All I did to replace this was to unscrew the 2 joints going into the old filter. I luckily had one of those "Jaw" type of oil filter wrenches and it fit perfectly over the union mount to unscrew it to get the old one out, and screw it back into the new filter. The new one lined up exactly at the same height as my old one so all I had to do was to slide it into place and screw the unions back on. I used plumbers tape at all joints, including the pressure relief valve and pressure valve. I screwed the pressure gauge into the pressure relief valve, then screwed the pressure relief valve on to the upper cover. To adjust the angle of the face of the gauge, I held onto the valve and unscrewed the gauge a little until I could easily see the gauge (instead of the gauge facing the house). I did make a mistake, though, and didn't replace to big O-rings in the unions so my lower union is now leaking a bit - but that's my fault for being lazy. Just mentioning that so you don't make the same mistake as I. I was a little intimated before I did this, but I'd removed the top from my old one (DE Leaks, Replaced the entire grid assembly, fixing the cracks) so I knew there wasn't very much to this filter in terms of complexity or number of pieces and parts. It's 80 pounds and bulky, so I did have to get help from my wife and daughter to lift it over the pipes into the final location of the filter. By the way, I ordered this on a Wednesday. Amazon said it'd be there Monday, but it actually arrived early on Friday, so it took less than 2 days to arrive after I ordered it. FNS® Plus Filter - TradeGrade More Surface Area for Better Pool Filtration and Less MaintenanceFNS Plus Pool Filters are designed with curved grids to maximize filtration area. More filter area means better performance and longer periods between cleanings. The internal design has been refined to minimize flow restrictions and, therefore, requires minimal pumping power to achieve a needed flow rate. This vertical-grid, D.E. filter is made of fiberglass-reinforced polypropylene for superior strength and reliability.
Find out where to purchase online or in a retail location near you. Where to Buy
Product Components
Delivers Crystal ClarityD.E. filters remove the tiniest of contaminants—particles as small as 5 microns (an average grain of sand is 1,000 microns). Just like a sponge, water can pass through, but microscopic impurities like dirt, algae and some forms of bacteria can’t. Maximized Filtration, Minimized CostsFNS Plus filters have been designed with curved grids to maximize filtration area. More filter area means better performance and longer periods between cleanings. Our internal design has been refined to minimize flow restrictions and, therefore, requires minimal pumping power to achieve a needed flow rate. That means lower utility costs. Time-Tested DesignFNS Plus filters were also designed for easy maintenance, convenience and long-term reliability. So, you can count on them to keep your pool’s water clean and crystal clear for years to come. DimensionsHomeowner and Pro Resources
Certified to NSF/ANSI Standard 50 Specifications
Products beginning with EC- are exclusive to e-commerce sales. For warranty information please visit www.pentair.com/warranty. 180007, 180008, 180009: Flow rate is based on 2 GPM per sq. ft. of filter area. Actual system flow will depend on plumbing size and other system components. Valves must be purchased separately. *Integrated Continuous High Flow Internal Air Relief is operational only when there is unobstructed flow in the circulating system. Note: Operating limits—Maximum continual operating pressure of 50 psi. Pool/spa (bather) applications, maximum operating water temperature (internal filter) 104° F (40° C). *Pentair has a trained team of TradeGrade experts and third-party resources that will be scouring the internet 24/7 for TradeGrade violations. Our guarantee to you is that we will use all resources at our disposal to actively monitor and enforce this policy.If a TradeGrade product is sold online, the warranty will be limited to a 60-day limited warranty. Pentair will not be liable for any costs or expenses related to an extended warranty provided to a customer beyond the 60-day limited warranty that Pentair provides for such sales. Additionally, no PIP dollars will be rewarded to the dealer for the purchase. When a TradeGrade product is purchased and sold in compliance with the TradeGrade policy, that product will receive the full product warranty. How long do Pentair DE filters last?DE filter grids can last for four or five years with proper care. During cleaning, the grids need to be looked over for damage. Tears in the grids can cause the diatomaceous earth to flow back out into the pool water. This shows up as a white or gray powdery substance on the bottom of the pool.
What happens if you run a DE filter with no DE?Do not operate your filter pump without having the D.E. powder coating the grids, or you will see the filter pressure rise very quickly, and if left in this manner the grids can collapse or the fabric can become clogged or damaged. As the pressure gauge on a D.E. filter increases, flow rate decreases.
How much DE do you put in a Pentair filter?However, if you can't find a suggestion from the manufacturer, you can use a simple rule of thumb: For a full clean or new filter, add one pound of DE powder for every 10 square feet of the filter. So, a 48-square-foot filter will need about five pounds of DE powder.
What happens if you dont put all grids in a DE filter?If you do not add enough DE to your filter, then the grids are not totally coated with DE and the dirt that goes into your filter will attach itself right to the fabric on the grids and will not backwash off. This will cause your filter to short cycle (go very short times between backwashing).
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Pentair fns plus fiberglass diatomaceous earth filter
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