We know how important it is to have what you need, when you need it. Lead times for our poly tanks have improved recently but we still advise planning ahead and calling us a couple months ahead of when you need the tank to make sure we: 1) have it in-stock or 2) will be able to get it in a timely manner. Specialty tanks are not typically tanks we keep stocked, so those are especially important to reach out in advance.
Within the last few years if we didn't have a poly tank in-stock it could take as long as 6-8 months to get. Recently lead times have improved down to 2 months or less, which is good news, but still something to keep in mind as you plan for future needs.