Just some background. At Lincoln Peak the snowmaking system can pump a maximum of 3,800-4,000 gallons per minute. There is an 18” pipe fro the snowmaking pond up to the compressor building. Then there are different diameter pipes up the different trails. At marginal temperatures each of the low energy guns or towers might produce only 15 gallons per minute. At colder temperatures they will do 80 GPM. The fans you see can do more. But the most water that can be pumped in any conditions is limited to 3,800-4,000 gallons per minute. The long range plan is to increase the water capacity as has been discussed previously. In the meantime a number of improvements have been made to use the existing capacity more efficient such new pumps like that at mid-station ME, new snowmaking pipe like that installed at the top of ME and on Pushover at LP and new click hydrant towers at both Lincoln Peak and ME which allow the system to get up and down faster. I have been pleased to learn about the capital that Alterra is continuing to give Sugarbush.These issues have nothing to do with the equipment being utilized (that every resort uses now with the exception of Killington) but how and where they are being utilized.
Another data point. It takes 180,000 gallons to make an acre foot of snow. Or 540,000 gallons to put down three feet of snow on an acre. A trail like Inverness is 25 acres. So to get the trail covered in three feet of snow takes 13.5 million gallons of water. The water capacity at ME is a bit less than LP. It is around 2,500 gallons per minute. Now you can do the math to calculate the hours it takes.
Everyone always talks about Killington. They have both enormous water and air capacity which was installed decades ago and why they are able to open a trail like Super Star in November And also get some other terrain open higher on the mountain.