Property me this pump a year ago (in the market) bought to have them at every tour there. That's where the fly in the ointment! The temperatures to which the rubber rosette - which is intended to prevent air from, again from the valve (I have french valves) to flow - is exposed in the summer, cause that this rubber with me in the course less than a year so brittle (despite seal fat) that the pump is no longer usable simply. On the whole, it provides reliable service if you meticulously paying attention to precisely those rubber rosette is not subjected to too big temperature fluctuations and they greased regularly. Do not come to this maintenance task to, you can buy in the near future a new pump. My rating: 4 of 5 stars for functionality. 2 star deduction for this rubber nuisance.
