| The only way you could try to calculate it would be to maybe throw an mj1200 in the tank with tubing long enough to get to a sink. To find out how much/how long just calculate that the mj1200 pushes 295gph then divide by 60 for 4.91 gpm(minute) round to 5 minutes and you have roughly 12 minutes to push 60 gallons out. |