The guy that filled my scuba tank had the exact same setup and he would fill them outside on his drive way just standing up. He would fill my aluminum tank to 3300 psi so that when it cooled it would hit 3000. I don't see any reason to mess with the water tank setup.
Quote from: c2k5 on October 04, 2014, 03:01:46 PMThe guy that filled my scuba tank had the exact same setup and he would fill them outside on his drive way just standing up. He would fill my aluminum tank to 3300 psi so that when it cooled it would hit 3000. I don't see any reason to mess with the water tank setup.The water set up speeds up cool time. That way you don't have to wait as long for the temperature to drop back down to get a true fill pressure. Especially with a 4500psi tank.
Hearing protection and eye safety dont do much good when a 100 lb bomb goes off standing 2 feet from it! The water is for both, safety and keeping it cool so as not to over heat and cause the tank to weaken. By law dive shops are supposed to fill in a water tank that is designed to contain the explosion, mostly the shrapnel. The water helps absorb the concussion as well as slow down the flying metal fragments. Water will also let you see a small leak to warn you of a problem before it does blow up. The holding tank is also designed to redirect the flying metal away from the person filling or bystanders. Most filling areas are set below the ground surface and fill with water which directs the explosion straight up rather than out toward people. https://www.google.com/search?q=dive+tank+explosion&espv=2&biw=1437&bih=988&tbm=isch&imgil=OJUz7A2MUVRWoM%253A%253BBZVH3QpHMst7xM%253Bhttp%25253A%25252F%25252Fbit.ly%25252F1er9AnI&source=iu&pf=m&fir=OJUz7A2MUVRWoM%253A%252CBZVH3QpHMst7xM%252C_&usg=__ud-GAfQ5XM04xOvYkUdU5D8jktQ%3D&dpr=0.9&ved=0CCcQyjc&ei=YnkwVL6eONekyASAloKAAg#facrc=_&imgdii=_&imgrc=mQgVyBLIW_vE8M%253A%3Blf2U_Lq-jwE1vM%3Bhttp%253A%252F%252Fwww.scubaengineer.com%252Fpictures%252Fscubatanks%252Ftank_blo_small.jpg%3Bhttp%253A%252F%252Fwww.scubaengineer.com%252Ftank_servicingx.htm%3B1516%3B1026William
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