Roberth would not shop at Aquatic Supplies Australia again.
Lack of service
Apologies for the delay in responding here, we just found this great website.
As discussed at the time of this incident, the unit simply required a replacement diaphragm which is not a part covered under warranty, these are designed to wear and be replaced as per your instruction manual. Whilst you state here the unit started to fail within the first month, it was many months after delivery before you contacted us.
We note your matter was resolved last year and the link to the diaphragm emailed to you.