speedplay wrote:I don't understand the argument that it needs to be drained to prevent a catastrophic flood event. If it is going to fail and leak it is probably going to happen inside the machine or at the stainless steel braided cable (barring having a GS3 or making an absent minded mistake) in either of those cases having the machine set up with a drain line off of the drip tray is not going to prevent anything at all. What you would need is a leak sensor to detect water around or under the machine.
Quite. All the leaks I've ever had have missed the drip tray entirely. The most likely catastrophic failures are likely to be in the supply line (had one of those) and the drip tray isn't going to help.
First plumbed in machine I used the drip tray drain, which was OK, but the drain would get clogged with grinds after some time and it was a pain to unclog it because the drain line wasn't very accessible. The second machine I only plumbed in the supply, but changed my technique to use a cup to catch flushing water etc. As it was a lever machine and I used a cup to catch the end of the pull anyway, it wasn't that much of a change.
I'm not going to plumb in te current machine at all.
No, you don't need to have a drain on the drip tray, but if it's convenient there's no reason not to have one.