For anyone in the Baltimore-Washington Metro, Hydratec in Baltimore is your place to go for hydraulic and machining work. This is not an ad but a personal recommendation. Last year they rebuilt the hydraulic cylinders for our swim platform and this year they rebuilt the hydraulic pump. The service is excellent - quick & reasonably priced - something hard to find in the marine industry. And even though they normally deal with huge commercial customers, Howard, the owner, personally made sure we were treated well and prioritized to get us back on the water. If you've got a boat with hydraulics, make your mechanic go to Hydratec. You won't regret it.