Any easier way to fill and check batteries?

Soon I will be buying 8 new Trojan flooded acid batteries. Pulling off caps and pouring water in is messy. Are there any adapters that make this job easier?
Thanks Dave

[QUOTE=DavetheWave;8611]Soon I will be buying 8 new Trojan flooded acid batteries. Pulling off caps and pouring water in is messy. Are there any adapters that make this job easier?
Thanks Dave[/QUOTE]

Yes, look online and you will find battery fill watering systems. There are several suppliers and they make filling the batteries very easy!