â€œAnyway, it seems there has been no independent testing done, which I find telling. If independent testing has been done, and it had determined that there were real merits to the CSV, then Iâ€™m sure the company would be pointing long and loud to those test results. Since they arenâ€™t, I remain skeptical of the deviceâ€™s merits.â€ How could you get any better testing done than a study by the USDA? http://www.cyclestopvalves.com/letterseditor_25.html Here are a few references from NASA, cities, Engineers, and a video from PBS. http://www.cyclestopvalves.com/csvapplications_18.html http://www.cyclestopvalves.com/csvapplications_4.html http://www.cyclestopvalves.com/pdf/csvapplications_10.pdf http://www.cyclestopvalves.com/video/pbs_2006-dsl.wmv â€œAs I recall, the tank company tests (wish I could find them again) found that there was little difference in the average number of starts between a CSV equipped system and a conventional system. That makes sense to me as a long time well user.â€ Amtrols test was set up to make their pressure tanks look superior to any constant pressure system. Their â€œtestâ€ had no uses of water over 7 minutes, and the conclusions were tainted. But some of the data was interesting. They said â€œthe CSV did not significantly reduce cycling over a properly sized tankâ€. However, the CSV caused 10 cycles per day compared to 19 Per day with a standard tank. That is almost a 50% reduction in cycling, which I would consider significant. They shouted the CSV caused the electric bill to double. But they quietly listed it only went from .508 KWH to 1.072 KWH, and failed to mention that is only 4 pennies per day. http://www.cyclestopvalves.com/letterseditor_21.html â€œWhen my well pump does die I plan to install a variable speed unit to address these issues.â€ Coming from a home owner, this statement tells me you are very confused about how pumps work. Coming from a pump installer, this statement may mean he is trying to sell the most expensive, shortest lasting trinket he thinks you can afford. Trying to â€œaddress these issuesâ€ by using a VFD, is like jumping out of the frying pan into the fire. The CSV was designed to replace variable speed pumps or VFDâ€™s, and we have been replacing them everyday since 1993. There are new VFDâ€™s, but VFDâ€™s are not new. Why would anyone want to go back to old, complicated, technical, expensive, VFD technology? The reason VFDâ€™s have been upgraded and made obsolete every 18 months for the last 40 years, is because they still canâ€™t solve the problems. The problems are laws of physics, which they can never solve. â€œSeems like they donâ€™t really like DIYers giving advice. They only want us asking for advise and then we best not challenge old school pumpmen.â€ LOL! I am the one challenging old school pump men, and even engineers. I donâ€™t post about anything I donâ€™t know for fact. There are so many misunderstandings and myths circulating about pump systems, I have vowed to help people get the facts. I learn something new from other people as well. But very few things about pumps are left to speculation. As you can see I am very vocal when someone starts giving advice about things they donâ€™t understand. I am still amazed how many people will just take the advice of someone who was raised in a house with a well. Especially when they can get advice from someone with over 40 years experience, who designed the product, and guarantees it to work. It is like getting advice on surgery from the parking lot attendant because he works at the hospital, instead of talking to the doctor himself. â€œIMHO, it is a very small price to pay for constant pressure.â€ Here are a few references that agree with you. I am lucky to get a few references. People only come to the Internet or forums when they are having problems. After they install a CSV, they no longer have problems and rarely come back to the forums. In this business we say, no news is good news. Just Google any of your appliances and see read all the complaints. 18 years with very little if any bad news on the Internet about CSVâ€™s is a good thing. http://www.cyclestopvalves.com/references_13.html http://www.cyclestopvalves.com/references_6.html http://www.cyclestopvalves.com/references_9.html â€œSo to get back to the original postâ€¦ Should the tank be replaced or does it have life left to â€œmilkâ€? My water pump is â€œshort cyclingâ€ from what I have read, the bladder usually goes bad rather to add air. I like to enjoy a shower so I want to get this resolved. but I always crave more pressure. I have showered in places before and when getting out thought to my self â€ wow that was a great shower I feel so refreshedâ€ I want that to be my shower.â€ You might be able to â€œmilkâ€ a little more out of that tank. When it quits holding air, giving water, or making the water smell bad, you will need to replace it. You can replace it with a very small tank if used with a CSV, and your pump will no longer short cycle. You can enjoy shower pressure in you house, better than any of the places you have envied, and all your â€œshort cyclingâ€, busted bladder, and low pressure problems will go away. The only disclaimer is that your pump must be strong enough to supply the pressure needed by the CSV.