![]() In contrast the by-the-gallon refill places will refill your tank until the "overfill prevention device" (OPD) shuts off the flow, which will be much closer to the true safe fill level of 19.2 lbs (4.6 gallons). Please note that all the cylinder-exchange places do this it has become a standard practice in that part of the propane industry to only put 15lbs in a 20lbs tank, as if they were following a farcical "63% fill" rule. ![]() The propane cylinder-exchange services seem to hope you don't know that, so they use try to use the "80% fill rule" to justify they fact that they only put 15 lbs of propane in their 20 lbs cylinders. The 80% fill rule is based on 80% of the total internal volume, not 80% of the pounds-of-LP-rating that was already based on an earlier 83% fill rule. That is, they have a total internal volume of about 5.7 gallons if you managed to fill it all the way up to the valve threads with LP (which would be unsafe) it would hold about 24 lbs of LP.Įven with the more modern "80% fill" rule that you should only fill an LP tank to 80% of its total volume, that would still mean your standard "20lbs" cylinder holds about 19.2 lbs of LP. The standard "20 lbs" liquid propane tanks like you probably use in your gas grill or outdoor space heater, are designed to hold fully 20 pounds (about 4.7 gallons) of liquid propane and still be only 83% full, leaving 17% headspace for gas expansion as a safety factor. To see what fun facts people are finding out look at r/TodayILearned!Ĭheck out r/LifeProTips to pick-up secrets of overcoming everyday problems!įind out what every man should know over at r/EveryManShouldKnow! It is advised that you use the search function in this subreddit or any other technology based subreddit to search for posts containing shortcuts for your OSĩ) Citations are required for YSKs regarding health and science related topics.ġ0) Don't shitpost. YSKs that are spamming websites, products and services will be dealt with at the discretion of the moderators and may result in action against the user posting the YSK.Ĩ) YSKs regarding computer shortcuts are no longer allowed as of June 2, 2014. The post must be a YSK as defined above.Ģ) Within your post you must include "Why YSK" which should have an explicit statement of how it helps people improve on a task, skill, or ability as noted in the 1st Rule (and not your personal story).ģ) YSKs regarding Reddit, Facebook, Twitter or any other social media are NOT ALLOWED.Ĥ) YSKs with referral links to sites such as Dropbox or Amazon are NOT ALLOWED.ĥ) YSKs regarding ideas or concepts based in conspiracy will be removed at the discretion of the moderatorsĦ) YSKs that are a call to arms, which can be asking for support for charities, organizations or political parties WILL NOT BE ALLOWED.ħ) This subreddit is not the place to be self-advertising your websites, products and services. ![]() Rulesġ) Your post MUST begin with YSK and have appropriate flair. Look here for some thoughts about difference between a YSK and a TIL. YSKs are about self-improvement on how to do things, not for facts and figures, which is what /r/TodayILearned is for. ![]() A community to share tips and tricks that will help yourself improve on activities, skills and various other tasks.
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