Near Intersection of I-35 & I-90 Southern Mn. | Here's how we handle a somewhat similar situation. Loads are hot mixed at my mixing shed in my dooryard. I have two cone tanks and my water tanks plumbed to the inlet of an electric transfer pump. By having two cone tanks rather than one we have more combinations for the chemicals. The chemicals themselves are measured with measuring flasks, chemical pumps or entire containers when possible. The chemicals and water enter the inlet of the transfer pump. We have a Raven Flow meter in the output side to the hose that fills the tanker truck. The Raven flow meter is connected to a 4 digit 7 segment electronic display. This display shows the running total for each batch.We have another inline flow meter with a built in display in the transfer line as a check. By having two flow meters, they act as a check against each other. This determines when we stop adding water.
Our tank on the tender truck is black so it is not possible to see the level in the tank. Although we can mentally keep track of how full the tanker is, it woud be handy to have a better idea of the level
The simple answer was to use a sight gauge hose with a fitting on the bottom and top of the tank. To make it easier to read, a small fishing bobber is used in the sight gauge tubing. This worked quite OK but we found that with certain products, the sight gauge tubing got cloudy and quickly became difficult to read. To reduce this problem I added a second sight gauge setup. Each sight gauge has a shut off valve on it. I have one open and the other closed. This means that when the first becomes cloudy, I can switch to the other. This helps the situation but eventually they both can get cloudy.
I had a bright idea but it failed. I reasoned that if I had some type of other product like crop oil in the sight gauge that it would not cloud over the inside of the tubing. I made the sight gauge extra long with the excess lying on the floor of the tanker. I poured crop oil in the top of the sight gauge. The idea was that the chemical mix would never be in the visible area of the sight tubing.
This sort of worked but was not accurate. The level inside the sight gauge varied with the level in the tank but was not the same level. It was then that I realized the product in the tank and the product in the sight gauge were not of the same density. So as the tank was filled or emptied, the sight gauge responded but did not accurately indicate the inside level. I suppose that maybe I could have made some marks beside the sight gauge tubing indicating the level although the indication would vary with different products . Most would suggest just changing the sight gauge tubing as needed.
Edited by tedbear 1/10/2026 07:42
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Accu-Volume on tender tanker
