Never use RV tank water for nasal irrigation - use only distilled or boiled water. Sanitize tanks every 3-6 months and only fill from potable sources to prevent contamination.
Sanitize your RV water tank after extended storage, especially after hot Arizona summers. Use 1/4 cup bleach per 15 gallons, let sit 4+ hours, then flush thoroughly.
A slow-draining gray tank is typically caused by grease buildup, soap residue, or debris in the tank or drain pipe. Most issues can be resolved with tank flushing, valve cleaning, or using specialized RV tank treatments.
First-use odor is bacteria/biofilm in lines between trips. Filters only clean incoming water, not whats sitting in plumbing. Run all faucets 30 seconds before use. Sanitize system quarterly. Pay attention to hot water tank maintenance.
Everything you need to know about RV plumbing systems from fresh water supply to waste management.