I'd say about 80 degrees would be good for rooting. That is a lot of peat in my opinion. I think about half and half with the sand would be better. You don't want the soil too moist. Let it dry out some before rewatering.

I have 2 of those sinks in my bathroom so I just went and measured. Both sinks have a1/4 overhang all the way around. I measured in multiple spots on front, back and sides. Were the cutouts done be machine or hand. Mine were done in the fabricators shop on a fancy, computerized machine. They just entered the sink specs into the computer to cut the holes. If your were done by hand that could account for the difference. It sounds like they are passing the blame onto kohler. I would bet that all the Kohler sinks are identical.

@kel_kat5 There are many ergonomic factors that need to be considered when determining sink depth. Double bowl sinks need to be deeper because large items, such as cookie sheets, trays, and other large items will not fit flat down in the bowl. They are generally washed by putting them half in and half out of the bowl at an angle while washing the bottom half, then flipping it around to wash the other half. These sinks should be 9 or 10" deep depending on your height. If you are shorter than 5'4" or taller than 6'0", I would suggest a 9" deep bowl. A shorter person and taller person will find it uncomfortable to reach down to the bottom of a 10" deep bowl. The best scenario, in my opinion, is a single bowl sink with a rear corner drain. That allows the user to lay large items flat down inside the sink to wash them without covering the drain. In this case, the sink should be 8" deep for most users, however, the same situation is true with shorter or very tall users. The bowl should be just a tad shallower. The reasoning here is that the user will be working at the bottom of the bowl all the time and reaching below 8" is ergonomically uncomfortable. The drain location should be placed in the right rear corner for right-handed users and in the left rear corner for left-handed users. The reasoning here is simple. A right-handed person will always hold a dish in their left hand and scrape debris into the disposal with their right hand. If you follow the motion of the right hand it leads to the right rear of the sink. There is another reason that is often overlooked. If the drain is in the right rear, the dish will be slightly turned toward the drain instead of perpendicular to the user. When a spray is used on the dish, the water will reflect away from you with the rear corner drain instead of potentially at you when the dish is perpendicular to your body. I have studied ergonomics for 40 years, the first 20 years, as a professional kitchen designer and the last 20 years as a sink designer. It has been my passion all of those years to provide ergonomically comfortable kitchens and sinks as well as to design kitchens and sinks that save time. As they say, "you can't make time" - however, you can save time! Best of luck in your search for a sink. Dino Rachiele

Sorry, I didn't mean to imply that the sink would fall into the cabinet when the sealant tears; it will, of course, be supported by clips or some other means. You're right that the full 1/4" of movement wouldn't affect any one part of the seal. At a minimum, the front and back edges would see about 1/8" of movement, while the part towards the middle of the counter might be quite stable. Even so, 1/8" is a lot. Yes, silicone is stretchy, but when you're playing with a shred big enough to handle, you are not duplicating the forces that are in play when the sealant is pressed into a flat layer that's 1/16" or less thick. Yes, the seals around drop-in sinks fail the same way, but the failure is further from the water, in a place less prone to cause problems. I realize that people do mount sinks this way, and I think they're pretty to look at. I'm not saying your whole kitchen is going to implode, but I am saying that you can't expect this installation to be as long-lived and trouble-free as an otherwise similar installation in a stone countertop.