Good Morning.  

I regularly attend and setup Pool Lifesaving Events in Australia and there has always been a problem when filling the Manikin half full.  In a lot of events the manikin is required to sit in the water at the top of the transverse line.

Filling the manikin to that level is a bit of guesswork and takes time.  Also, during the competition the manikins also let in air/water as the seals are not perfect.

Would it be possible to alter the design whereby the chest plug is located at the top of the transverse line? That way, it would be guaranteed the manikins were not over or under weight.  It would also stop the manikin handlers from over or under filling the manikins.

Regards
Eric