Bidvest Telkom Park Potable/Backup Tanks. Home Bidvest Telkom Park Potable/Backup Tanks. A 29KL Portable/Backup water supply Tanks built in 3days in Centurion & Hartbeeshoek using Videx Sectional Steel HDG tank panels. On both sites, tanks were used as Potable/Backup water supply in case of municipal supply interruptions. Applications Potable/Backup water…