De or het aalpomp?

The correct Dutch article is:

de aalpomp

  • Plural: de aalpompen
  • Diminutive: het aalpompje
Meaning (Dutch) (techniek) pomp voor het wegpompen van vloeibare mest of afvalwater

How to use aalpomp

the aalpompde aalpomp
this aalpompdeze aalpomp
that aalpompdie aalpomp
our aalpomponze aalpomp
your aalpompjouw aalpomp
every aalpompelke aalpomp
which aalpomp?welke aalpomp?
a big aalpomp / the big aalpompeen grote aalpomp, de grote aalpomp
the aalpomp (plural)de aalpompen, deze aalpompen

Dutch words ending in aalpomp

centrifugaalpomp | waterstraalpomp

In compound words, the last part decides the article. See the rule

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).