james
What do you mean by disinfectant?
If you mean products such as Jeyes Fluid, Dettol etc. etc. then I don't know if these will have any effect on your pump seals, hoses etc.
If you mean, however, our regular in-tank and spray on de-odourisers, then these will almost certainly be compatible with your equipment.
If in doubt, contact Ashby's
Safe and happy cleaning
The Ken