Hi I read a post on this forum about air pumps for retract systems Over here in the Uk some of us now use the cordless air pumps like the Rothenberger Battery Powered Cordless Air Pump - 1.9022 App $55.00 approx or a cheaper version sold under the name polco these retails around $25.90 dollers us (£16.00.. UK ) I have been using the one in photo for 2 seasons now pumps over 100psi in no time.. You can find these on the UK E bay site but they must sell on the US site too .. Pete F ..