@ debgurl =>=>=> Oh yes you are right about salt or baking soda and temperature, and also about the non slipping nozzle, relaxing, light, music, and been really comfortable when receiving the enema.
A baryum enema nozzle is cheaper and safe to, this one is 1" (25mm) diameter wide never slip out my ass.
My spouse fisted me, we also play with this plug 3" diameter wide http://www.zity.biz/gallery/image/107519
The chemical mixing proportions
for salt ( NaCl ) is 9% salt for 91% tap water. ( the same as the mix used in hospital )
for baking soda is 14% baking soda for 86% tap water
as you know salt is bad for arteries
You can connect a Higginson ( in line pump ) to the bag or the can so you have the ability to increase your feels when you have a pulse, a peak of pleasure by squeezing one, two, rhree times your Higginson bulb.