Hey all,

I am sure this must have been brought up in past. I am being asked by a land owner to supply them with studies indicating the safety or lack of harm to trees when using vacuum. I am well aware of the benefits of vac in that we are using less taps per trees, preventing less bacteria to enter the tap hole etc... but the only really studies I have found or articles through proctor or cornell more or less say that so far it looks like there is no harm but really there is no way to tell yet for many more years........does any one have any real good 'reads' for non-maple producers to allow them more confidence in us using vacuum in their woods?? Thanks for any tips..........