Winterizing question

[TYSON PECK]

Came home from winter in the south and may need to winterize .

If I only use fluid and not compressed air how do I make certain that both fresh and waste tank rinse inlets will not freeze? Cant seem to get antifreeze passed the screen in inlet port.

[Adventure.AS]

For the waste tank rinse I have used a short (1 foot) piece of hose with a male end and threaded it into the inlet. I filled the hose with anti-freeze and using my breath found that it was easy to just blow the af through. You can purchase a Camco hand pump to do the job for under $20.