I struggled for a month because I believed that I was doing something wrong. I contacted the dealership, they didn't know and didn't care at all. No matter how many tests you do in the bathtub, you don't see the problem. After diving, the water doesn't drain in 40% of the storage space. Because it is relatively large and on the sides (or below in the sea), but with a small valve compared to the space it fills with water, the water doesn't drain, resulting in having to get out every now and then and empty the water. And because as you swim, you hear the gurgling of the water under the valve, that's why I threw it away and bought another one. I also mentioned to the dealership that there is a construction error, which is why it has a relatively low price compared to others with valves from the same company (less than half)

After 3-4 uses, the hard plastic on the base of the respirator around the valve started to crack. By the 10th use, the cracks had spread and it now leaks water, to the point where I imagine it will become unusable. All of this within a month of purchasing it in July 2019, and of course without it being dropped or hit anywhere, while I rinsed it with tap water when returning from the beach as recommended by the manufacturer. Unreasonable wear and tear... or just my bad luck... I wouldn't recommend it to anyone.

I spoke with Mares and they replaced it for me, but the new one they gave me is heading down the same path, just at a slower pace... confirmed disappointment.