Hey Chris!
I just wanted to say thank you because I have sincerely enjoyed all your articles. It's great to read tough criticism tempered with real-world practicality. Whether it was your intent or not, your articles seemed to incorporate truly useful advice that is obviously derived from years of experience.
By the way, I am completely mystified how your comments about the superiority of direct-plumbed installations could be construed as arrogant. After all, it wasn't like you were demanding readers to perform vascular surgery with a power drill or any other patently hazardous action, for heaven's sake!
On a brighter subject, I definitely concur with Dan. There is very little involved in direct-plumbed installations through most solid surface materials that is all that difficult for most individuals who are willing to invest the time and energy. In the last five years I've done two of my own direct-plumbed installations plus a few more (okay, last count was six) for family members and friends. Based on my own experiences and the feedback from those I've "plumbed-in" it would be difficult to overemphasize how much such an installation adds to the daily enjoyment of the entire espresso making process. However, be advised that doing it
perfectly yourself requires a significant investment in time to plan the installation as well as research on how to best perform the task to achieve professional results AND of course, not flood the house in the process. And you will need some specialized tools to do it right. But frankly, it's methodical work, not rocket science. Most water supplies can be hooked up using the excellent and absurdly easy to install John Guest fittings available through Chris Coffee Service. When it comes to drain connections, you may want to leave that up to a professional to make sure you avoid inadvertently flooding your house with highly flammable and/or noxious gasses found in sewer and drain systems. And don't forget to install a clear water filter housing between the drip tray and the drain to collect grounds. It's easier to empty that once a month than it is to have your domestic drain lines clog with settled coffee grounds. That's a little trick I learned from a plumber who installs commercial machines.
When working with stone slab counters, I found that cutting the opening is the easy part. What's taken time, patience and elbow grease is honing an even bevel on its edge before polishing the opening to flawlessly to match the rest of the counter surface. That arduous and rather anal process can be avoided by using any number of grommets available in metal and plastic that are commonly used to route cables through desktops and furniture shelving. I'm fussy and so I do it the hard way, but neither way is any more right or wrong than the other. My current installation was through 1.5 inch thick quartz composite surface material. After THAT experience, I'd leave hole cutting for quartz composites to a professionally trained, equipped and INSURED installer: Although the outcome is picture perfect, it's not something I'd want to do again. Yeeesh!