The under the counter type is the same as the under the sink kitchen water filters. They run through a separate faucet or use the original tap. The water flow of the under the counter units is normally better than with the counter top units. Most of these systems need the filter to be changed twice a year, whereas the faucet-mounted units usually need to be changed every three months.
The proper amount of sanitizer for a child is about the size of a pea. An adult only needs to use a dime sized amount of sanitizer in order to be properly using sanitizer. Any more than this amount is just waste and money you are washing down the drain.
Wherever the caregiver comes from, you should be monitoring what the caregiver is doing, or even if the caregiver is even showing up. They should sign in each time they come, and there should be some record of what they have done. You should go to the home while they are there and watch what they do and how they are doing it. Pay attention to the way they are interacting with your loved one/client. More important, watch to see how they are reacting to the caregiver.
Blow drying clean hair after you have applied and rinsed out treatment and picked out knits can speed up the process tremendously. Spend at least five minutes blow drying hair on the hottest setting your child can stand. This is how much time it takes to kill live lice.