Candle Wax Seams

I am making standard pillar mold candles. I don't usually melt enough wax in one sitting to fill the entire pillar from top to bottom. So I fill it part way, then melt more wax, then fill it the rest of the way.

Candle Wax Seams

I get these very obvious seams as a result. Any techniques to have it not make these strong seams? Or do I just have to melt a giant amount of wax all at once and pour it in all at once?

Candle Wax Seams

In this bottom image the candle on the far left was actually done with one pour and it did come out smooth and seamless.

Candle Wax Seams

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