Tech Talk 53
How to Clean Sweetwater® Diffusers
Sweetwater® air diffusers, made of glass-bonded silica, are virtually indestructible and will give many years of service.
The only maintenance normally required is periodic cleaning. The frequency of cleaning will be determined by the mineral and organic content of the water in which the air diffusers are used. In clean, cold, soft water, cleaning may only be necessary every 2 or 3 years. In very hard water or water high in organics, it could be necessary as often as every 2 months.
Remove from service and blow out excess water. If fouled with barnacles or other gross foreign material, scrape or hose off.
If you have a 1/2" NPT white fitting on the end of your diffuser, immerse the diffuser portion, not the fitting, completely in undiluted muriatic acid for a sufficient time to dissolve the clogging material. This may take from one minute to eight hours in the most extreme cases. Be very careful when using acid! Wear eye, face and hand protection and have clean water available for rinsing and acid diluting in the case of an acid splash or spill.
After the clogging material has been dissolved, rinse thoroughly before reuse.
Discard the used acid after reducing its strength to a neutral pH by diluting with at least ten times as much water as acid. Add acid to water; never add water to acid.
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