D- Clorvac Home is Where The Herd Is. Home | Our Products | Poultry | D- Clorvac Description.Composition; De- Chlorinating complex, PH stabilizer and Food grade colourD- Clorvac is a decholorinating agent and water PH stabilizer indicated for removing chlorine and regulating PH of water used for vaccination. Mixing RatioMixing ratio; 2gms of D- Clorvac in 10liters of water D- Clorvac