Can I easily measure the amount of chemical going to the main tank?

Yes, Goldacres have several options available. The SuperFlow induction hopper has internal markings to provide a guide of the amount of chemical being transferred. The Transcal allows chemical to be measured into the Transcal tank and then transferred to the main tank for mixing. Another option is a chemical pump which can be used to provide you with a digital readout of the amount of chemical transferred.