If you wish to have your Waterlog factory serviced with complete rebuild and zero houred, just click the "Purchase" button (above) and fill in your details after clicking "Go to checkout" button (which will appear on right of your screen). You will then be e-mailed your job reference and postal details for mailing your unit back. The price includes complete refurbishment to as-new mechanical condition and a new membrane element. This price is actually less than some manufacturers charge for just a replacement pump head alone. Waterlog is famous for high quality build and low prices. How is this done? Volume production. Waterlog is one of only three watermaker manufacturers in the World who produce everything in-house, including pumps and membranes.