Underground tanks
ID1000 – 2400 mm. STRONG tanks are used for collecting wastewater, stormwater, fire fighting water and domestic water.
![](https://www.iwsgroup.ee/wp-content/uploads/2019/04/501000_ID1000_maa_alune_mahuti--540x540.png)
![](https://www.iwsgroup.ee/wp-content/uploads/2019/04/501600_ID1600_maa_alune_mahuti-540x540.png)
![](https://www.iwsgroup.ee/wp-content/uploads/2019/04/502400_ID2400_maa_alune_mahuti-540x540.png)
![Tank-Check](https://www.iwsgroup.ee/wp-content/uploads/2019/04/Tank-Check-1080-540x540.png)
Alarm device Tank-Check TC-412
Wireless alarm device Tank Check TC-412 is intended to inform the filling of tanks and the emergency flow of small pumping stations.