Normally for the first time use of the RO system, the water seems to have white bubbles in it,which is normal and totally drinkable. It is because when the pump is pressurizing the water, it will pressurize the air at the same time. It will make the air molecules smaller, thus the solubility further increases. The air can’t be released at that time because of the pressure in the RO system.
However, when you turn on the tap to get a cup of water, the pressure of air is released. So you will see a huge number of bubbles in the water. It looks cloudy and white, but they are just bubbles. After you put the water still for a while, all bubbles will be gone, the water is totally good for drinking.

It is because the TAM4 filter, the post filter, adds the minerals to the water. Normally the TAM4 will increase the TDS by 10-30 ppm. If the system hasn’t been used for a while, the TAM4 will restore more minerals to the water, and at that time the water is very good, the PH level will be more than 9.

Osmosis is a natural phenomenon happens in all RO system, no matter if you have a conventional RO system or tankless RO system. When the RO system starts to work, pressure from the pump overcomes natural osmotic pressure, forcing feed water through the RO membrane that removes the impurities.
When the RO system stops working, the pump stops offering pressure as well. At that time, because of different concentrations, a small fraction of ions will enter into pure water and cause TDS to rise by a small amount. However, even if the TDS reading is a little high at the beginning, the quality water is still unbeatable by any other filtration methods including carbon, KDF, ceramic, UF, UV, etc..
The water is totally good to drink and you don’t have to wait for about 1 minute to get the water, since the whole system will not release any harmful substances to the water.
The TDS removing rate for PD1000-TAM4 is about 94-95%, if your incoming TDS is high, the outlet TDS will be high too.

When the system is running, the TDS sensor in the PD1000 will keep testing the water quality every 1 minute.
Therefore, the TDS result you see from the machine is from the last test memory.
If you want to have the real-time TDS result, please let the machine run for about 1 minute.

You don’t have to disconnect the tubing and the fittings on the TAM4. You only need to unscrew the TAM4 filter and the water still can go through.

Please feel free to contact us at support@frizzlife.com to claim for a longer thread stem.

PD1000-TAM4 is best for users who want a higher-capacity 1000 GPD tankless reverse osmosis system with remineralization and smart TDS monitoring. It is positioned for larger households, shared kitchens, or users with higher daily water demand who still want a space-saving under sink RO setup.

Yes. PD1000-TAM4 includes the TAM4 remineralization post-filter, which helps rebalance the taste of RO water after filtration by restoring selected minerals through mineral-based media.

PD1000-TAM4 is designed for up to 1000 GPD capacity and a tested flow rate of up to 0.7 GPM under optimal conditions. It can fill an 8 oz cup in approximately 5 seconds in suitable use conditions. Actual flow may vary with water pressure, temperature, feed water quality, and filter condition.

PD1000-TAM4 uses a 2:1 pure-to-drain ratio design, producing 2 cups of purified water for every 1 cup of wastewater under the stated design conditions. This helps improve household water efficiency compared with many standard RO systems. Actual performance can vary by pressure, temperature, and feed water quality.

The built-in smart panel displays real-time TDS readings and provides filter status feedback through color-coded indicators. This helps users monitor output water conditions and understand when filter replacement may be needed. It supports easier daily maintenance without requiring users to guess system status.

Yes. PD1000-TAM4 supports expanded usage scenarios through compatible accessories such as the IMC-1 refrigerator or ice maker connection kit. It also supports optional MWT3 mini tank expansion for certain household water demand setups. Confirm accessory compatibility and installation requirements before connecting additional appliances.

PD1000-TAM4 is positioned around higher 1000 GPD output, tankless installation, TAM4 remineralization, and smart TDS monitoring. Compared with lower-capacity models, the main advantage is faster water delivery for higher daily demand. It should still be differentiated carefully from PD1200, which is positioned around 1200 GPD and smart faucet performance.