We use Astral’s water tanks at our school premises and have them around for years. It is a reliable company. Recently we ordered their Delta Water Tanks as it promised anti-microbial properties and hygiene. However, just within a week, we found mold developing on the edge of the tank.
The tanks are kept in heavy sunlight on the roof and maybe the heat caused a microbial outbreak. But this is serious and can cause health issues, especially when there are small children around. We only use this water in the toilets and bathrooms, but if we are paying a premium price for Astral’s tanks, the products must be of the highest quality.