11-06-2013, 18:04
No mater what you use to create the vacume.... if its loosing pressure you have a leak... either in a fitting or a hose or the check valve in the pump... once I eliminated those problems I can pump it up and it stays attached for hours..... if you get an electric pump make sure it has a regulator else you will be fore ever adjusting it and will probably hurt yourself if its unregulated...