- May 4, 2012
How are people using this much? We use 7kl a month and get paid back 7kl free allocation. The payback isn't exactly the same but overall it costs almost nothing. An average household of 3 people shouldn't use more than 20kl being generous.With a R2500+ savings on water per month the borehole and equipment will pay itself off within 2 to 3 years.