HTM 01 - 05 does not specifically state that dip slides must be carried out but it does state that the manufacturer's instructions must be followed if you are using a dosing system. Therefore you DO need to be doing the dip slides quarterly.
The dip slides are quick and easy to carry out and are relatively cheap to buy.
Hi, yes you do need to check every three months using dipslides from the company who makes alpron. you then record the findings and receive a certificate when you sumit them. talk to jane the inventor, she will help you. if you need any further help let me know. x
