Dog Bathing Product Calculator

Because a dilution ratio of "16" is defined (per the dilution-ratio input's own help text) as 16 parts water mixed with 1 part concentrate -- so the finished diluted batch contains 17 total parts, not 16. Dividing the diluted volume straight by 16 would overstate how much concentrate is actually in the mix by roughly 6%, since it would be treating the ratio as if it already counted the concentrate portion itself.

No -- Rinse water is calculated from Dog weight and Coat length only; Coat type (smooth, double, curly/wool, or wire) has no effect on the water-gallons figure, even though it does change how much shampoo and conditioner get used. The model treats rinse volume as driven by how much surface area and coat length there is to rinse through, not by how absorbent or textured the coat is.

Yes, exactly -- Monthly product cost is Total product cost per bath multiplied directly by Baths per month, with no volume discount, seasonal variation, or product-mix change built in. It's a straight linear projection meant for quick budgeting, not a substitute for tracking actual purchase history in a real grooming business.

Two effects are actually in play, and they partially offset rather than compound: Diluted conditioner starts at only 65% of the diluted shampoo volume, which alone pulls the concentrate figure down. But the conditioner's own dilution ratio is 75% of the Shampoo dilution ratio you entered -- a LOWER ratio number, which by this calculator's "X parts water to 1 part concentrate" definition means the conditioner mix is actually MORE concentrated (less water per part of concentrate) than shampoo, not less. That second effect pushes Concentrate conditioner up, not down -- but it's outweighed by the 65%-of-volume reduction, so the net result still comes out smaller than the shampoo concentrate figure.