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1917 June, THE MARINE REVIEW 61 When You See This Trade Mark Every Boat must have Le another Pump! The law-makers have decreed that every boat that sails the Great Lakes must have an independent system for supplying drinking water. Remember it stands for the noted Blackmer Rotary Pump, which has stood the test and found to be efficient, reliable and durable. One that has an automatic take-up for wear feature. The drinking water cannot pass through the same pump that feeds your boilers. Therefore, you must install an addition- al pump. What Pump shall it be? Does not require priming. Guaranteed against Catalogue and : complete in- pressures. i. J formation sent upon request. All parts inter- changeable so that they can_ be replaced without experienced help. Pumps with capac- ities from 5 to 500 gallons per minute. Blackmer Rotary Pump Co. Petoskey, Mich. ON STEAM Pl TILE CREEK mic Already, from our Cleveland Office alone, we have sold over 100 UNION DUPLEX PUMPS The great demand for these pumps, all for use on boats, proves that boat owners have the utmost confidence in us. For many years UNION PUMPS have given the kind of service that makes permanent friends. Every pump, before shipment, receives a thorough test by a competent en- gineer. It must stand a fifty percent excess pressure at full speed, on a half day run, before it is passed by the testing engineer. | Steamer “CAPTO” 376' x 52' 3" x 28' ‘‘taking the water” October 14, 1916. Moore and Scott Iron Works Engineers and Ship Builders Builders of Merchant Vessels and Tankers. Main Office: San Francisco, Cal. Shipyards: ‘Oakland, Cal. Every pump is guaranteed by us for a year against defects in material and workmanship. Before you install that new pump, WRITE US | The Union Steam Pump Co. Battle Creek, Mich. Please mention THE Marine Review when writing to Advertisers