The company from which I purchased my hydrogen water filter sent a plumber to my house to connect it. He said the only way he could do the job was to drill a hole in my countertop. This was not satisfactory, so I did not have him do the job. Danny Dean from Bill Howe Plumbing came, assessed the situation, devised an approach that involved no drilling of holes, no tubing running along the counter top, and no mess. The job was done very professionally in less than an hour! I was thrilled. Now I know whom to call for my plumbing needs.