That method from knitca is pretty good especially with an acrylic yarn. You can split the plies and then knit for as many sts as you would like. That will ensure that the strands don’t come apart and you can cut the tails with confidence.
https://www.youtube.com/watch?v=nIRZ4ZUF2Wo
Of course you can always try this out on a swatch. I’ve done it without the knots. It’s much less visible and sturdier than a knot at end of row.
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Ha
Oh my goodness that’s a bit spooky I’ve honestly just saved the video
Thank you for your time it really is appreciated
Take Care
It’s easiest to join yarn at the end / beginning of a row. No knots needed, just pick up the new yarn and start! When you weave in the ends later, twist the ends a couple of times before you weave them in, and be sure to weave them in different directions.
Although with a blanket, you might knit across a whole row only to find you’re a few stitches short. To avoid this, you can weigh your yarn before and after you knit a row, so you know how much yarn each row takes. Then when you get close to the end of a ball, you can check the weight so you know when to start a new ball.
I’m not familiar with that yarn, but I do use a lot of Bernat Blanket yarn which is also chunky. I find that after weaving in the ends, I need to lock them in place with sewing thread and needle. Otherwise, they pop out. Perhaps the large stitches contribute to that problem.
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Hi
Thank you so much I am a novice knitter
But strangely I can understand and knit a pattern once I’ve undone it a hundred times during the set up rows.
I tend to just make blankets having 7 grandchildren, there’s so much I don’t know.
But can pull off a good blanket 

And I will say respectfully I spoke with the lady in my yarn shop re joining the super chunky yarn , and she was saying how customers seem to do many join on yarns all too fancy for her and doesn’t trust them.
But yours is actually the same one as she had said she uses.
Been in the yarn business it seems forever.
So you must be as talented as her.
I thought I’d share with you in a way to say Thank you for taking the time to reply.
Thank you again.
Take Care
Eileen
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Have fun knitting the blanket which will fly by in super chunky! We’d love to see a photo when you finish.
Aww! How sweet! I “never” use knots. In quotes because I might have once or twice!
I have seven grandchildren as well! They have plenty of blankets made by Nana! 
Here’s are ends that have popped out because I didn’t sew them down. This one is mine so I don’t care enough to bother.
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It may not be ideal but as someone who is newer to the hobby I sometimes use fabric glue to keep my ends from popping out. As I learn more I leave myself a longer tail to make sure I can weave properly. But in the past I have used fabric glue to keep those in place.
That’s interesting! I’d be afraid of making a mess. Does it leave hard spots?
Beth
A little bit. I don’t use a lot. Just at the very tip so it stops from poking out