E-Mix XT - Overview & Best Practices

The NEW Graco E-Mix XT is the most economical, easy-to-operate & portable electric variable ratio spray system to date! Designed to handle spray ratios from 1:1 up to 6:1, it is also fully capable with coatings up to 100% solids content - making it an ideal solution for nearly every job. For more details and to find out what contractors are saying, visit graco.com/EMix.

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So if I used it for spray foam how would I get the material out of the 55gal drums?