Making sure your transplant is healthy continues with ensuring its source of water is optimal. You can verify the state of your water by collecting from and testing your water source, which will reveal both the alkalinity levels as well as the nutritional suitability for transplant production. Your county’s Cooperative Extension center can assist in this.
For the most part, farmers use water that comes from municipal water sources. For those who use well water, high levels of alkalinity in the water are a rare occurrence, but it should still be tested to make sure. If you do need to treat your private well water for high alkalinity levels, use extreme caution. The amounts vary considerably depending on your well’s levels, so consulting an expert before treatment is highly recommended.
The NSCU flue-cured guide recommends that growers avoid pond or river water as it could contain disease-causing organisms or harmful herbicide residue from soil runoff. If it comes from a municipal source, however, that water is probably acceptable.