"Bob" wrote in message
news
My question is: Is there anything in the water that will damage the
trees?

If you google for "msds tide", you can find the MSDS (Material Safety Data
Sheets) for both the liquid and granular forms.

For example, for the granular form, the ingredients that are hazardous
ingredients (as defined by OSHA) are

Sodium carbonate (Soda ash)
Subtilisin (Proteolytic enzyme)
Linear alkyl benzene sulfonate (C12.3 LAS)
High solubility alkyl sulfate (Anionic surfactant)
Cellulase enzyme (Carezyme)

The Ecological concerns listed in the MSDS a

No concerns at relevant environmental concentrations. This product contains
an anionic surfactant that has an aquatic 96 hr LC50 of 0.92 ppm (Pimephales
promelas, OECD 203 test). This is the lowest L/EC50 amongst fish, Daphina
and algae. This surfactant is rapidly biodegradable under aerobic and
anaerobic conditions (protocols: OECD 301-B and ECETOC 1988, respectively).
The levels of biodegradation in these standard test conditions are 70%. Its
removal in municipal sewage treatment is expected to be 99% based on
standard laboratory test methods. Environmental risk assessment confirms
comfortable safety margins because of its high removal and fast
biodegradability kinetics